STATE STREET GLOBAL ADVISORS TRUST COMPANY has sponsored the creation of one or more 401k plans.
Submission information for form 5500 for 401k plan SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A
401k plan membership statisitcs for SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A
| Measure | Date | Value |
|---|
| 2023 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2023 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $19,228,679 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $19,228,679 |
| Total transfer of assets to this plan | 2023-12-31 | $98,212,684 |
| Total transfer of assets from this plan | 2023-12-31 | $167,537,408 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $2,006,634 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $2,280,459 |
| Total income from all sources (including contributions) | 2023-12-31 | $9,619,742 |
| Total loss/gain on sale of assets | 2023-12-31 | $-14,731,776 |
| Total of all expenses incurred | 2023-12-31 | $20,448 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-12-31 | $0 |
| Value of total assets at end of year | 2023-12-31 | $147,689,431 |
| Value of total assets at beginning of year | 2023-12-31 | $207,688,686 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $20,448 |
| Total interest from all sources | 2023-12-31 | $5,103,400 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2023-12-31 | $4,141,502 |
| Assets. Other investments not covered elsewhere at beginning of year | 2023-12-31 | $6,271,818 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $2,409,661 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $2,494,083 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $2,006,634 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $2,280,459 |
| Administrative expenses (other) incurred | 2023-12-31 | $-5,883 |
| Total non interest bearing cash at end of year | 2023-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2023-12-31 | $4 |
| Value of net income/loss | 2023-12-31 | $9,599,294 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $145,682,797 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $205,408,227 |
| Interest earned on other investments | 2023-12-31 | $215,164 |
| Income. Interest from US Government securities | 2023-12-31 | $2,342,099 |
| Income. Interest from corporate debt instruments | 2023-12-31 | $2,473,792 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-12-31 | $2,987,787 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2023-12-31 | $4,890,754 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2023-12-31 | $4,890,754 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-12-31 | $72,345 |
| Asset value of US Government securities at end of year | 2023-12-31 | $84,618,770 |
| Asset value of US Government securities at beginning of year | 2023-12-31 | $117,998,939 |
| Net investment gain or loss from common/collective trusts | 2023-12-31 | $19,439 |
| Asset. Corporate debt instrument preferred debt at end of year | 2023-12-31 | $30,235,971 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2023-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2023-12-31 | $23,295,740 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2023-12-31 | $76,033,088 |
| Contract administrator fees | 2023-12-31 | $16,601 |
| Aggregate proceeds on sale of assets | 2023-12-31 | $135,103,650 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $149,835,426 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-01-01 | $19,228,679 |
| Total unrealized appreciation/depreciation of assets | 2023-01-01 | $19,228,679 |
| Total transfer of assets to this plan | 2023-01-01 | $98,212,684 |
| Total transfer of assets from this plan | 2023-01-01 | $167,537,408 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $2,006,634 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $2,280,459 |
| Total income from all sources (including contributions) | 2023-01-01 | $9,619,742 |
| Total loss/gain on sale of assets | 2023-01-01 | $-14,731,776 |
| Total of all expenses incurred | 2023-01-01 | $20,448 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2023-01-01 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2023-01-01 | $0 |
| Value of total assets at end of year | 2023-01-01 | $147,689,431 |
| Value of total assets at beginning of year | 2023-01-01 | $207,688,686 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-01-01 | $20,448 |
| Total interest from all sources | 2023-01-01 | $5,103,400 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-01-01 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2023-01-01 | $4,141,502 |
| Assets. Other investments not covered elsewhere at beginning of year | 2023-01-01 | $6,271,818 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-01-01 | $2,409,661 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-01-01 | $2,494,083 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-01-01 | $2,006,634 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-01-01 | $2,280,459 |
| Administrative expenses (other) incurred | 2023-01-01 | $-5,883 |
| Total non interest bearing cash at end of year | 2023-01-01 | $0 |
| Total non interest bearing cash at beginning of year | 2023-01-01 | $4 |
| Value of net income/loss | 2023-01-01 | $9,599,294 |
| Value of net assets at end of year (total assets less liabilities) | 2023-01-01 | $145,682,797 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-01-01 | $205,408,227 |
| Interest earned on other investments | 2023-01-01 | $215,164 |
| Income. Interest from US Government securities | 2023-01-01 | $2,342,099 |
| Income. Interest from corporate debt instruments | 2023-01-01 | $2,473,792 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-01-01 | $2,987,787 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-01-01 | $72,345 |
| Asset value of US Government securities at end of year | 2023-01-01 | $84,618,770 |
| Asset value of US Government securities at beginning of year | 2023-01-01 | $117,998,939 |
| Net investment gain or loss from common/collective trusts | 2023-01-01 | $19,439 |
| Asset. Corporate debt instrument preferred debt at end of year | 2023-01-01 | $30,235,971 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2023-01-01 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2023-01-01 | $23,295,740 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2023-01-01 | $76,033,088 |
| Contract administrator fees | 2023-01-01 | $16,601 |
| Aggregate proceeds on sale of assets | 2023-01-01 | $135,103,650 |
| Aggregate carrying amount (costs) on sale of assets | 2023-01-01 | $149,835,426 |
| 2022 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-92,700,008 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-92,700,008 |
| Total transfer of assets to this plan | 2022-12-31 | $115,144,638 |
| Total transfer of assets from this plan | 2022-12-31 | $1,602,707,507 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $2,280,459 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $4,953,969 |
| Total income from all sources (including contributions) | 2022-12-31 | $-224,563,227 |
| Total loss/gain on sale of assets | 2022-12-31 | $-154,481,495 |
| Total of all expenses incurred | 2022-12-31 | $118,436 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-12-31 | $0 |
| Value of total assets at end of year | 2022-12-31 | $207,688,686 |
| Value of total assets at beginning of year | 2022-12-31 | $1,922,606,728 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $118,436 |
| Total interest from all sources | 2022-12-31 | $22,618,276 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $0 |
| Administrative expenses professional fees incurred | 2022-12-31 | $8,653 |
| Assets. Other investments not covered elsewhere at end of year | 2022-12-31 | $6,271,818 |
| Assets. Other investments not covered elsewhere at beginning of year | 2022-12-31 | $66,005,022 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $2,494,083 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $14,820,233 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $2,280,459 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $4,953,969 |
| Administrative expenses (other) incurred | 2022-12-31 | $109,361 |
| Total non interest bearing cash at end of year | 2022-12-31 | $4 |
| Total non interest bearing cash at beginning of year | 2022-12-31 | $0 |
| Value of net income/loss | 2022-12-31 | $-224,681,663 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $205,408,227 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $1,917,652,759 |
| Investment advisory and management fees | 2022-12-31 | $422 |
| Interest earned on other investments | 2022-12-31 | $1,544 |
| Income. Interest from US Government securities | 2022-12-31 | $10,310,844 |
| Income. Interest from corporate debt instruments | 2022-12-31 | $12,246,055 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $4,890,754 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $11,130,590 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $11,130,590 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $59,833 |
| Asset value of US Government securities at end of year | 2022-12-31 | $117,998,939 |
| Asset value of US Government securities at beginning of year | 2022-12-31 | $1,062,918,746 |
| Asset. Corporate debt instrument preferred debt at end of year | 2022-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2022-12-31 | $395,404,203 |
| Asset. Corporate debt instrument debt (other) at end of year | 2022-12-31 | $76,033,088 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2022-12-31 | $372,327,934 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $1,669,858,907 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $1,824,340,402 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-01-01 | $-92,700,008 |
| Total unrealized appreciation/depreciation of assets | 2022-01-01 | $-92,700,008 |
| Total transfer of assets to this plan | 2022-01-01 | $115,144,638 |
| Total transfer of assets from this plan | 2022-01-01 | $1,602,707,507 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $2,280,459 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $4,953,969 |
| Total income from all sources (including contributions) | 2022-01-01 | $-224,563,227 |
| Total loss/gain on sale of assets | 2022-01-01 | $-154,481,495 |
| Total of all expenses incurred | 2022-01-01 | $118,436 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2022-01-01 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2022-01-01 | $0 |
| Value of total assets at end of year | 2022-01-01 | $207,688,686 |
| Value of total assets at beginning of year | 2022-01-01 | $1,922,606,728 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-01-01 | $118,436 |
| Total interest from all sources | 2022-01-01 | $22,618,276 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-01-01 | $0 |
| Administrative expenses professional fees incurred | 2022-01-01 | $8,653 |
| Assets. Other investments not covered elsewhere at end of year | 2022-01-01 | $6,271,818 |
| Assets. Other investments not covered elsewhere at beginning of year | 2022-01-01 | $66,005,022 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-01-01 | $2,494,083 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-01-01 | $14,820,233 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-01-01 | $2,280,459 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-01-01 | $4,953,969 |
| Administrative expenses (other) incurred | 2022-01-01 | $109,361 |
| Total non interest bearing cash at end of year | 2022-01-01 | $4 |
| Total non interest bearing cash at beginning of year | 2022-01-01 | $0 |
| Value of net income/loss | 2022-01-01 | $-224,681,663 |
| Value of net assets at end of year (total assets less liabilities) | 2022-01-01 | $205,408,227 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-01-01 | $1,917,652,759 |
| Investment advisory and management fees | 2022-01-01 | $422 |
| Interest earned on other investments | 2022-01-01 | $1,544 |
| Income. Interest from US Government securities | 2022-01-01 | $10,310,844 |
| Income. Interest from corporate debt instruments | 2022-01-01 | $12,246,055 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-01-01 | $4,890,754 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-01-01 | $59,833 |
| Asset value of US Government securities at end of year | 2022-01-01 | $117,998,939 |
| Asset value of US Government securities at beginning of year | 2022-01-01 | $1,062,918,746 |
| Asset. Corporate debt instrument preferred debt at end of year | 2022-01-01 | $0 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2022-01-01 | $395,404,203 |
| Asset. Corporate debt instrument debt (other) at end of year | 2022-01-01 | $76,033,088 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2022-01-01 | $372,327,934 |
| Aggregate proceeds on sale of assets | 2022-01-01 | $1,669,858,907 |
| Aggregate carrying amount (costs) on sale of assets | 2022-01-01 | $1,824,340,402 |
| 2021 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2021 401k financial data |
|---|
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $0 |
| Total transfer of assets to this plan | 2021-12-31 | $523,404,289 |
| Total transfer of assets from this plan | 2021-12-31 | $229,141,870 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $4,953,969 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $9,971,818 |
| Total income from all sources (including contributions) | 2021-12-31 | $-25,050,018 |
| Total loss/gain on sale of assets | 2021-12-31 | $-7,484,050 |
| Total of all expenses incurred | 2021-12-31 | $217,671 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2021-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2021-12-31 | $0 |
| Value of total assets at end of year | 2021-12-31 | $1,922,606,728 |
| Value of total assets at beginning of year | 2021-12-31 | $1,658,629,847 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $217,671 |
| Total interest from all sources | 2021-12-31 | $37,937,264 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $0 |
| Administrative expenses professional fees incurred | 2021-12-31 | $30,884 |
| Assets. Other investments not covered elsewhere at end of year | 2021-12-31 | $66,005,022 |
| Assets. Other investments not covered elsewhere at beginning of year | 2021-12-31 | $60,187,679 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $14,820,233 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $17,749,458 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $4,953,969 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $9,971,818 |
| Administrative expenses (other) incurred | 2021-12-31 | $186,787 |
| Total non interest bearing cash at end of year | 2021-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2021-12-31 | $0 |
| Value of net income/loss | 2021-12-31 | $-25,267,689 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $1,917,652,759 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $1,648,658,029 |
| Investment advisory and management fees | 2021-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2021-12-31 | $0 |
| Interest earned on other investments | 2021-12-31 | $1,948,049 |
| Income. Interest from US Government securities | 2021-12-31 | $14,939,701 |
| Income. Interest from corporate debt instruments | 2021-12-31 | $21,028,544 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $11,130,590 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $35,683,365 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $35,683,365 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $20,970 |
| Asset value of US Government securities at end of year | 2021-12-31 | $1,062,918,746 |
| Asset value of US Government securities at beginning of year | 2021-12-31 | $838,947,579 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $-55,503,232 |
| Asset. Corporate debt instrument preferred debt at end of year | 2021-12-31 | $395,404,203 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2021-12-31 | $386,408,650 |
| Asset. Corporate debt instrument debt (other) at end of year | 2021-12-31 | $372,327,934 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2021-12-31 | $319,653,116 |
| Contract administrator fees | 2021-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $425,786,792 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $433,270,842 |
| 2020 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2020 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2020-12-31 | $82,584,680 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $82,584,680 |
| Total transfer of assets to this plan | 2020-12-31 | $402,392,607 |
| Total transfer of assets from this plan | 2020-12-31 | $313,641,050 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $9,971,818 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $14,290,282 |
| Total income from all sources (including contributions) | 2020-12-31 | $130,395,896 |
| Total loss/gain on sale of assets | 2020-12-31 | $10,996,938 |
| Total of all expenses incurred | 2020-12-31 | $183,473 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2020-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2020-12-31 | $0 |
| Value of total assets at end of year | 2020-12-31 | $1,658,629,847 |
| Value of total assets at beginning of year | 2020-12-31 | $1,443,984,331 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $183,473 |
| Total interest from all sources | 2020-12-31 | $36,814,278 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $0 |
| Administrative expenses professional fees incurred | 2020-12-31 | $30,895 |
| Assets. Other investments not covered elsewhere at end of year | 2020-12-31 | $60,187,679 |
| Assets. Other investments not covered elsewhere at beginning of year | 2020-12-31 | $44,679,847 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $17,749,458 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $19,811,155 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $9,971,818 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $14,290,282 |
| Administrative expenses (other) incurred | 2020-12-31 | $152,578 |
| Total non interest bearing cash at end of year | 2020-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2020-12-31 | $8,363 |
| Value of net income/loss | 2020-12-31 | $130,212,423 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $1,648,658,029 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $1,429,694,049 |
| Interest earned on other investments | 2020-12-31 | $1,722,147 |
| Income. Interest from US Government securities | 2020-12-31 | $15,614,170 |
| Income. Interest from corporate debt instruments | 2020-12-31 | $19,392,493 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $35,683,365 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $7,877,492 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $7,877,492 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $85,468 |
| Asset value of US Government securities at end of year | 2020-12-31 | $838,947,579 |
| Asset value of US Government securities at beginning of year | 2020-12-31 | $821,998,007 |
| Asset. Corporate debt instrument preferred debt at end of year | 2020-12-31 | $386,408,650 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2020-12-31 | $281,416,944 |
| Asset. Corporate debt instrument debt (other) at end of year | 2020-12-31 | $319,653,116 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2020-12-31 | $268,192,523 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $492,523,278 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $481,526,340 |
| 2019 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2019 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2019-12-31 | $58,631,583 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $58,631,583 |
| Total transfer of assets to this plan | 2019-12-31 | $773,983,791 |
| Total transfer of assets from this plan | 2019-12-31 | $121,287,117 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $14,290,282 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $7,359,759 |
| Total income from all sources (including contributions) | 2019-12-31 | $92,003,511 |
| Total loss/gain on sale of assets | 2019-12-31 | $3,634,481 |
| Total of all expenses incurred | 2019-12-31 | $128,746 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2019-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2019-12-31 | $0 |
| Value of total assets at end of year | 2019-12-31 | $1,443,984,331 |
| Value of total assets at beginning of year | 2019-12-31 | $692,482,369 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $128,746 |
| Total interest from all sources | 2019-12-31 | $29,737,447 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $0 |
| Administrative expenses professional fees incurred | 2019-12-31 | $23,893 |
| Assets. Other investments not covered elsewhere at end of year | 2019-12-31 | $44,679,847 |
| Assets. Other investments not covered elsewhere at beginning of year | 2019-12-31 | $21,849,585 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $19,811,155 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $10,379,835 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $14,290,282 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $7,359,759 |
| Administrative expenses (other) incurred | 2019-12-31 | $104,853 |
| Total non interest bearing cash at end of year | 2019-12-31 | $8,363 |
| Total non interest bearing cash at beginning of year | 2019-12-31 | $0 |
| Value of net income/loss | 2019-12-31 | $91,874,765 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $1,429,694,049 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $685,122,610 |
| Interest earned on other investments | 2019-12-31 | $1,227,493 |
| Income. Interest from US Government securities | 2019-12-31 | $13,801,686 |
| Income. Interest from corporate debt instruments | 2019-12-31 | $14,611,736 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $7,877,492 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $3,059,889 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $3,059,889 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $96,532 |
| Asset value of US Government securities at end of year | 2019-12-31 | $821,998,007 |
| Asset value of US Government securities at beginning of year | 2019-12-31 | $394,874,709 |
| Asset. Corporate debt instrument preferred debt at end of year | 2019-12-31 | $281,416,944 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2019-12-31 | $141,493,282 |
| Asset. Corporate debt instrument debt (other) at end of year | 2019-12-31 | $268,192,523 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2019-12-31 | $120,825,069 |
| Aggregate proceeds on sale of assets | 2019-12-31 | $216,030,863 |
| Aggregate carrying amount (costs) on sale of assets | 2019-12-31 | $212,396,382 |
| 2018 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $-20,375,431 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-20,375,431 |
| Total transfer of assets to this plan | 2018-12-31 | $52,529,474 |
| Total transfer of assets from this plan | 2018-12-31 | $111,728,564 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $7,359,759 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $4,560,546 |
| Total income from all sources (including contributions) | 2018-12-31 | $-3,974,213 |
| Total loss/gain on sale of assets | 2018-12-31 | $-3,734,583 |
| Total of all expenses incurred | 2018-12-31 | $85,472 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2018-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2018-12-31 | $0 |
| Value of total assets at end of year | 2018-12-31 | $692,482,369 |
| Value of total assets at beginning of year | 2018-12-31 | $752,941,931 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $85,472 |
| Total interest from all sources | 2018-12-31 | $20,135,801 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $17,717 |
| Assets. Other investments not covered elsewhere at end of year | 2018-12-31 | $21,849,585 |
| Assets. Other investments not covered elsewhere at beginning of year | 2018-12-31 | $26,507,446 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $10,379,835 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $9,121,472 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $7,359,759 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $4,560,546 |
| Administrative expenses (other) incurred | 2018-12-31 | $67,755 |
| Total non interest bearing cash at end of year | 2018-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2018-12-31 | $27,485 |
| Value of net income/loss | 2018-12-31 | $-4,059,685 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $685,122,610 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $748,381,385 |
| Interest earned on other investments | 2018-12-31 | $931,999 |
| Income. Interest from US Government securities | 2018-12-31 | $8,822,205 |
| Income. Interest from corporate debt instruments | 2018-12-31 | $10,359,774 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $3,059,889 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $2,494,884 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $2,494,884 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $21,823 |
| Asset value of US Government securities at end of year | 2018-12-31 | $394,874,709 |
| Asset value of US Government securities at beginning of year | 2018-12-31 | $412,114,546 |
| Asset. Corporate debt instrument preferred debt at end of year | 2018-12-31 | $141,493,282 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2018-12-31 | $162,014,757 |
| Asset. Corporate debt instrument debt (other) at end of year | 2018-12-31 | $120,825,069 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2018-12-31 | $140,661,341 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $194,474,775 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $198,209,358 |
| 2017 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2017-12-31 | $9,374,420 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $9,374,420 |
| Total transfer of assets to this plan | 2017-12-31 | $105,569,128 |
| Total transfer of assets from this plan | 2017-12-31 | $92,424,564 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $4,560,546 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $863,871 |
| Total income from all sources (including contributions) | 2017-12-31 | $29,858,672 |
| Total loss/gain on sale of assets | 2017-12-31 | $623,632 |
| Total of all expenses incurred | 2017-12-31 | $90,496 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2017-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2017-12-31 | $0 |
| Value of total assets at end of year | 2017-12-31 | $752,941,931 |
| Value of total assets at beginning of year | 2017-12-31 | $706,332,516 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $90,496 |
| Total interest from all sources | 2017-12-31 | $19,860,620 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $20,266 |
| Assets. Other investments not covered elsewhere at end of year | 2017-12-31 | $26,507,446 |
| Assets. Other investments not covered elsewhere at beginning of year | 2017-12-31 | $24,417,364 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $9,121,472 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $7,114,647 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $4,560,546 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $863,871 |
| Administrative expenses (other) incurred | 2017-12-31 | $70,230 |
| Total non interest bearing cash at end of year | 2017-12-31 | $27,485 |
| Total non interest bearing cash at beginning of year | 2017-12-31 | $525 |
| Value of net income/loss | 2017-12-31 | $29,768,176 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $748,381,385 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $705,468,645 |
| Interest earned on other investments | 2017-12-31 | $941,986 |
| Income. Interest from US Government securities | 2017-12-31 | $8,149,118 |
| Income. Interest from corporate debt instruments | 2017-12-31 | $10,732,959 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $2,494,884 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $2,178,203 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $2,178,203 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $36,557 |
| Asset value of US Government securities at end of year | 2017-12-31 | $412,114,546 |
| Asset value of US Government securities at beginning of year | 2017-12-31 | $376,845,556 |
| Asset. Corporate debt instrument preferred debt at end of year | 2017-12-31 | $162,014,757 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2017-12-31 | $164,301,890 |
| Asset. Corporate debt instrument debt (other) at end of year | 2017-12-31 | $140,661,341 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2017-12-31 | $131,474,331 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $196,130,044 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $195,506,412 |
| 2016 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $846,401 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $846,401 |
| Total transfer of assets to this plan | 2016-12-31 | $109,001,681 |
| Total transfer of assets from this plan | 2016-12-31 | $62,043,181 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $863,871 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $5,484,349 |
| Total income from all sources (including contributions) | 2016-12-31 | $18,677,138 |
| Total loss/gain on sale of assets | 2016-12-31 | $559,426 |
| Total of all expenses incurred | 2016-12-31 | $81,508 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2016-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2016-12-31 | $0 |
| Value of total assets at end of year | 2016-12-31 | $706,332,516 |
| Value of total assets at beginning of year | 2016-12-31 | $645,398,864 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $81,508 |
| Total interest from all sources | 2016-12-31 | $17,271,311 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $25,668 |
| Assets. Other investments not covered elsewhere at end of year | 2016-12-31 | $24,417,364 |
| Assets. Other investments not covered elsewhere at beginning of year | 2016-12-31 | $25,581,231 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $7,114,647 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $7,994,871 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $863,871 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $5,484,349 |
| Administrative expenses (other) incurred | 2016-12-31 | $55,840 |
| Total non interest bearing cash at end of year | 2016-12-31 | $525 |
| Total non interest bearing cash at beginning of year | 2016-12-31 | $0 |
| Value of net income/loss | 2016-12-31 | $18,595,630 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $705,468,645 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $639,914,515 |
| Interest earned on other investments | 2016-12-31 | $980,150 |
| Income. Interest from US Government securities | 2016-12-31 | $6,881,604 |
| Income. Interest from corporate debt instruments | 2016-12-31 | $9,390,071 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $2,178,203 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $11,122,388 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $11,122,388 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $19,486 |
| Asset value of US Government securities at end of year | 2016-12-31 | $376,845,556 |
| Asset value of US Government securities at beginning of year | 2016-12-31 | $351,873,025 |
| Asset. Corporate debt instrument preferred debt at end of year | 2016-12-31 | $164,301,890 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2016-12-31 | $137,655,328 |
| Asset. Corporate debt instrument debt (other) at end of year | 2016-12-31 | $131,474,331 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2016-12-31 | $111,172,021 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $143,419,215 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $142,859,789 |
| 2015 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-14,125,763 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-14,125,763 |
| Total transfer of assets to this plan | 2015-12-31 | $79,519,372 |
| Total transfer of assets from this plan | 2015-12-31 | $85,155,150 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $5,484,349 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $6,985,162 |
| Total income from all sources (including contributions) | 2015-12-31 | $891,723 |
| Total loss/gain on sale of assets | 2015-12-31 | $-1,421,512 |
| Total of all expenses incurred | 2015-12-31 | $107,240 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2015-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2015-12-31 | $0 |
| Value of total assets at end of year | 2015-12-31 | $645,398,864 |
| Value of total assets at beginning of year | 2015-12-31 | $651,750,972 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $107,240 |
| Total interest from all sources | 2015-12-31 | $16,438,998 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $0 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2015-12-31 | $0 |
| Administrative expenses professional fees incurred | 2015-12-31 | $27,628 |
| Assets. Other investments not covered elsewhere at end of year | 2015-12-31 | $25,581,231 |
| Assets. Other investments not covered elsewhere at beginning of year | 2015-12-31 | $27,924,072 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $7,994,871 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $6,363,316 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $5,484,349 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $6,985,162 |
| Administrative expenses (other) incurred | 2015-12-31 | $79,612 |
| Total non interest bearing cash at end of year | 2015-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2015-12-31 | $0 |
| Value of net income/loss | 2015-12-31 | $784,483 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $639,914,515 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $644,765,810 |
| Interest earned on other investments | 2015-12-31 | $1,185,056 |
| Income. Interest from US Government securities | 2015-12-31 | $6,444,042 |
| Income. Interest from corporate debt instruments | 2015-12-31 | $8,805,763 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $11,122,388 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $2,514,303 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $2,514,303 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $4,137 |
| Asset value of US Government securities at end of year | 2015-12-31 | $351,873,025 |
| Asset value of US Government securities at beginning of year | 2015-12-31 | $368,611,376 |
| Income. Dividends from preferred stock | 2015-12-31 | $0 |
| Income. Dividends from common stock | 2015-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2015-12-31 | $137,655,328 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2015-12-31 | $151,219,377 |
| Asset. Corporate debt instrument debt (other) at end of year | 2015-12-31 | $111,172,021 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2015-12-31 | $95,118,528 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $165,903,554 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $167,325,066 |
| 2014 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $20,280,803 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $20,280,803 |
| Total transfer of assets to this plan | 2014-12-31 | $100,001,541 |
| Total transfer of assets from this plan | 2014-12-31 | $40,410,235 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $6,985,162 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $22,576,230 |
| Total income from all sources (including contributions) | 2014-12-31 | $34,660,593 |
| Total loss/gain on sale of assets | 2014-12-31 | $35,835 |
| Total of all expenses incurred | 2014-12-31 | $100,545 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2014-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2014-12-31 | $0 |
| Value of total assets at end of year | 2014-12-31 | $651,750,972 |
| Value of total assets at beginning of year | 2014-12-31 | $573,190,686 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $100,545 |
| Total interest from all sources | 2014-12-31 | $14,343,955 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $0 |
| Administrative expenses professional fees incurred | 2014-12-31 | $27,226 |
| Assets. Other investments not covered elsewhere at end of year | 2014-12-31 | $27,924,072 |
| Assets. Other investments not covered elsewhere at beginning of year | 2014-12-31 | $23,143,990 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $6,363,316 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $5,660,990 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $6,985,162 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $22,576,230 |
| Administrative expenses (other) incurred | 2014-12-31 | $73,319 |
| Total non interest bearing cash at end of year | 2014-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2014-12-31 | $234 |
| Value of net income/loss | 2014-12-31 | $34,560,048 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $644,765,810 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $550,614,456 |
| Interest earned on other investments | 2014-12-31 | $2,283 |
| Income. Interest from US Government securities | 2014-12-31 | $6,629,235 |
| Income. Interest from corporate debt instruments | 2014-12-31 | $7,707,185 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $2,514,303 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $26,991,414 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $26,991,414 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $5,252 |
| Asset value of US Government securities at end of year | 2014-12-31 | $368,611,376 |
| Asset value of US Government securities at beginning of year | 2014-12-31 | $316,233,111 |
| Asset. Corporate debt instrument preferred debt at end of year | 2014-12-31 | $151,219,377 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2014-12-31 | $129,113,385 |
| Asset. Corporate debt instrument debt (other) at end of year | 2014-12-31 | $95,118,528 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2014-12-31 | $72,047,562 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $136,337,722 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $136,301,887 |
| 2013 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $-24,964,725 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $-24,964,725 |
| Total transfer of assets to this plan | 2013-12-31 | $271,976,349 |
| Total transfer of assets from this plan | 2013-12-31 | $87,574,402 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $22,576,230 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $6,248,746 |
| Total income from all sources (including contributions) | 2013-12-31 | $-13,395,182 |
| Total loss/gain on sale of assets | 2013-12-31 | $-1,006,247 |
| Total of all expenses incurred | 2013-12-31 | $110,442 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2013-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2013-12-31 | $0 |
| Value of total assets at end of year | 2013-12-31 | $573,190,686 |
| Value of total assets at beginning of year | 2013-12-31 | $385,966,879 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $110,442 |
| Total interest from all sources | 2013-12-31 | $12,575,790 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $0 |
| Administrative expenses professional fees incurred | 2013-12-31 | $21,809 |
| Assets. Other investments not covered elsewhere at end of year | 2013-12-31 | $23,143,990 |
| Assets. Other investments not covered elsewhere at beginning of year | 2013-12-31 | $15,063,534 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $5,660,990 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $4,897,301 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $22,576,230 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $6,248,746 |
| Administrative expenses (other) incurred | 2013-12-31 | $88,633 |
| Total non interest bearing cash at end of year | 2013-12-31 | $234 |
| Total non interest bearing cash at beginning of year | 2013-12-31 | $0 |
| Value of net income/loss | 2013-12-31 | $-13,505,624 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $550,614,456 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $379,718,133 |
| Interest earned on other investments | 2013-12-31 | $892,218 |
| Income. Interest from US Government securities | 2013-12-31 | $4,901,500 |
| Income. Interest from corporate debt instruments | 2013-12-31 | $6,776,008 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $26,991,414 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $7,637,050 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $7,637,050 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $6,064 |
| Asset value of US Government securities at end of year | 2013-12-31 | $316,233,111 |
| Asset value of US Government securities at beginning of year | 2013-12-31 | $226,496,440 |
| Asset. Corporate debt instrument preferred debt at end of year | 2013-12-31 | $129,113,385 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2013-12-31 | $86,848,122 |
| Asset. Corporate debt instrument debt (other) at end of year | 2013-12-31 | $72,047,562 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2013-12-31 | $45,024,432 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $138,603,048 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $139,609,295 |
| 2012 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $6,578,142 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $6,578,142 |
| Total transfer of assets to this plan | 2012-12-31 | $111,456,473 |
| Total transfer of assets from this plan | 2012-12-31 | $36,881,730 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $6,248,746 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $6,914,635 |
| Total income from all sources (including contributions) | 2012-12-31 | $15,418,080 |
| Total loss/gain on sale of assets | 2012-12-31 | $259,140 |
| Total of all expenses incurred | 2012-12-31 | $67,908 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2012-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2012-12-31 | $0 |
| Value of total assets at end of year | 2012-12-31 | $385,966,879 |
| Value of total assets at beginning of year | 2012-12-31 | $296,707,853 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $67,908 |
| Total interest from all sources | 2012-12-31 | $8,580,798 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $0 |
| Administrative expenses professional fees incurred | 2012-12-31 | $22,085 |
| Assets. Other investments not covered elsewhere at end of year | 2012-12-31 | $15,063,534 |
| Assets. Other investments not covered elsewhere at beginning of year | 2012-12-31 | $11,681,440 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $4,897,301 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $4,424,442 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $6,248,746 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $6,914,635 |
| Administrative expenses (other) incurred | 2012-12-31 | $45,823 |
| Total non interest bearing cash at end of year | 2012-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2012-12-31 | $826 |
| Value of net income/loss | 2012-12-31 | $15,350,172 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $379,718,133 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $289,793,218 |
| Interest earned on other investments | 2012-12-31 | $542,808 |
| Income. Interest from US Government securities | 2012-12-31 | $3,655,536 |
| Income. Interest from corporate debt instruments | 2012-12-31 | $4,368,946 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $7,637,050 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $10,115,255 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $10,115,255 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $13,508 |
| Asset value of US Government securities at end of year | 2012-12-31 | $226,496,440 |
| Asset value of US Government securities at beginning of year | 2012-12-31 | $176,207,258 |
| Asset. Corporate debt instrument preferred debt at end of year | 2012-12-31 | $86,848,122 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2012-12-31 | $61,822,576 |
| Asset. Corporate debt instrument debt (other) at end of year | 2012-12-31 | $45,024,432 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2012-12-31 | $32,456,056 |
| Aggregate proceeds on sale of assets | 2012-12-31 | $86,692,926 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $86,433,786 |
| 2011 : SSGA U.S. GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $14,714,227 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $14,714,227 |
| Total transfer of assets to this plan | 2011-12-31 | $315,948,628 |
| Total transfer of assets from this plan | 2011-12-31 | $47,643,033 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $6,914,635 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $0 |
| Total income from all sources (including contributions) | 2011-12-31 | $21,535,417 |
| Total loss/gain on sale of assets | 2011-12-31 | $59,621 |
| Total of all expenses incurred | 2011-12-31 | $47,794 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2011-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2011-12-31 | $0 |
| Value of total assets at end of year | 2011-12-31 | $296,707,853 |
| Value of total assets at beginning of year | 2011-12-31 | $0 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $47,794 |
| Total interest from all sources | 2011-12-31 | $6,761,569 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $0 |
| Administrative expenses professional fees incurred | 2011-12-31 | $19,733 |
| Assets. Other investments not covered elsewhere at end of year | 2011-12-31 | $11,681,440 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $4,424,442 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $6,914,635 |
| Administrative expenses (other) incurred | 2011-12-31 | $28,061 |
| Total non interest bearing cash at end of year | 2011-12-31 | $826 |
| Value of net income/loss | 2011-12-31 | $21,487,623 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $289,793,218 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $0 |
| Interest earned on other investments | 2011-12-31 | $416,602 |
| Income. Interest from US Government securities | 2011-12-31 | $3,025,548 |
| Income. Interest from corporate debt instruments | 2011-12-31 | $3,310,902 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $10,115,255 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2011-12-31 | $8,517 |
| Asset value of US Government securities at end of year | 2011-12-31 | $176,207,258 |
| Asset. Corporate debt instrument preferred debt at end of year | 2011-12-31 | $61,822,576 |
| Asset. Corporate debt instrument debt (other) at end of year | 2011-12-31 | $32,456,056 |
| Aggregate proceeds on sale of assets | 2011-12-31 | $58,133,137 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $58,073,516 |
