STATE STREET GLOBAL ADVISORS TRUST COMPANY has sponsored the creation of one or more 401k plans.
Submission information for form 5500 for 401k plan STATE STREET U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A
401k plan membership statisitcs for STATE STREET U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A
| Measure | Date | Value |
|---|
| 2022 : STATE STREET U.S. SHORT-TERM 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 | $-80,137,343 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-80,137,343 |
| Total transfer of assets to this plan | 2022-12-31 | $395,278,276 |
| Total transfer of assets from this plan | 2022-12-31 | $616,987,230 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $147,793,089 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $129,239,837 |
| Total income from all sources (including contributions) | 2022-12-31 | $-92,319,588 |
| Total loss/gain on sale of assets | 2022-12-31 | $-36,949,741 |
| Total of all expenses incurred | 2022-12-31 | $267,543 |
| 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 | $2,405,163,568 |
| Value of total assets at beginning of year | 2022-12-31 | $2,700,906,401 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $267,543 |
| Total interest from all sources | 2022-12-31 | $24,767,496 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $0 |
| Administrative expenses professional fees incurred | 2022-12-31 | $12,939 |
| Assets. Other investments not covered elsewhere at end of year | 2022-12-31 | $39,501,665 |
| Assets. Other investments not covered elsewhere at beginning of year | 2022-12-31 | $53,010,690 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $119,874,576 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $136,576,773 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $147,793,089 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $129,239,837 |
| Administrative expenses (other) incurred | 2022-12-31 | $254,604 |
| Total non interest bearing cash at end of year | 2022-12-31 | $8 |
| Value of net income/loss | 2022-12-31 | $-92,587,131 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $2,257,370,479 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $2,571,666,564 |
| Interest earned on other investments | 2022-12-31 | $126,951 |
| Income. Interest from US Government securities | 2022-12-31 | $14,694,819 |
| Income. Interest from corporate debt instruments | 2022-12-31 | $9,903,475 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $54,034,873 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $10,357,009 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $10,357,009 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $42,251 |
| Asset value of US Government securities at end of year | 2022-12-31 | $1,565,340,571 |
| Asset value of US Government securities at beginning of year | 2022-12-31 | $1,832,741,311 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2022-12-31 | $413,428,164 |
| Asset. Corporate debt instrument debt (other) at end of year | 2022-12-31 | $626,411,875 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2022-12-31 | $254,792,454 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $1,223,295,001 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $1,260,244,742 |
| 2021 : STATE STREET U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2021-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $0 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $0 |
| Total transfer of assets to this plan | 2021-12-31 | $980,895,223 |
| Total transfer of assets from this plan | 2021-12-31 | $303,116,370 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $129,239,837 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $121,629,550 |
| Expenses. Interest paid | 2021-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2021-12-31 | $0 |
| Total income from all sources (including contributions) | 2021-12-31 | $-12,490,702 |
| Total loss/gain on sale of assets | 2021-12-31 | $-8,468,892 |
| Total of all expenses incurred | 2021-12-31 | $278,697 |
| 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 | $2,700,906,401 |
| Value of total assets at beginning of year | 2021-12-31 | $2,028,286,660 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $278,697 |
| Total interest from all sources | 2021-12-31 | $15,676,120 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $0 |
| Total dividends received from registered investment company shares (eg mutual funds) | 2021-12-31 | $0 |
| Assets. Real estate other than employer real property at end of year | 2021-12-31 | $0 |
| Assets. Real estate other than employer real property at beginning of year | 2021-12-31 | $0 |
| Administrative expenses professional fees incurred | 2021-12-31 | $32,499 |
| Assets. Corporate prefeered stocks other than exployer securities at end of year | 2021-12-31 | $0 |
| Assets. Corporate prefeered stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Assets. Other investments not covered elsewhere at end of year | 2021-12-31 | $53,010,690 |
| Assets. Other investments not covered elsewhere at beginning of year | 2021-12-31 | $39,073,064 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $136,576,773 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $133,622,985 |
| Assets. Loans (other than to participants) at end of year | 2021-12-31 | $0 |
| Assets. Loans (other than to participants) at beginning of year | 2021-12-31 | $0 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $129,239,837 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $121,629,550 |
| Other income not declared elsewhere | 2021-12-31 | $0 |
| Administrative expenses (other) incurred | 2021-12-31 | $246,198 |
| 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 | $-12,769,399 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $2,571,666,564 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $1,906,657,110 |
| Investment advisory and management fees | 2021-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2021-12-31 | $0 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2021-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2021-12-31 | $0 |
| Interest earned on other investments | 2021-12-31 | $50,292 |
| Income. Interest from US Government securities | 2021-12-31 | $7,762,090 |
| Income. Interest from corporate debt instruments | 2021-12-31 | $7,857,484 |
| Value of interest in common/collective trusts at end of year | 2021-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2021-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $10,357,009 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $13,222,142 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $13,222,142 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $6,254 |
| Value of funds held in insurance company general accounts (unallocated contracts) at end of year | 2021-12-31 | $0 |
| Value of funds held in insurance company general accounts (unallocated contracts) at beginning of year | 2021-12-31 | $0 |
| Asset value of US Government securities at end of year | 2021-12-31 | $1,832,741,311 |
| Asset value of US Government securities at beginning of year | 2021-12-31 | $1,306,428,872 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2021-12-31 | $0 |
| Net investment gain or loss from common/collective trusts | 2021-12-31 | $-19,697,930 |
| Income. Dividends from preferred stock | 2021-12-31 | $0 |
| Income. Dividends from common stock | 2021-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2021-12-31 | $413,428,164 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2021-12-31 | $345,122,137 |
| Asset. Corporate debt instrument debt (other) at end of year | 2021-12-31 | $254,792,454 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2021-12-31 | $190,817,460 |
| Contract administrator fees | 2021-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2021-12-31 | $0 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2021-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $1,052,838,600 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $1,061,307,492 |
| 2020 : STATE STREET U.S. SHORT-TERM 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 | $17,138,262 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $17,138,262 |
| Total transfer of assets to this plan | 2020-12-31 | $904,892,266 |
| Total transfer of assets from this plan | 2020-12-31 | $330,023,036 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $121,629,550 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $73,897,196 |
| Total income from all sources (including contributions) | 2020-12-31 | $47,119,627 |
| Total loss/gain on sale of assets | 2020-12-31 | $4,303,264 |
| Total of all expenses incurred | 2020-12-31 | $184,032 |
| 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 | $2,028,286,660 |
| Value of total assets at beginning of year | 2020-12-31 | $1,358,749,481 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $184,032 |
| Total interest from all sources | 2020-12-31 | $25,678,101 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $0 |
| Administrative expenses professional fees incurred | 2020-12-31 | $27,977 |
| Assets. Other investments not covered elsewhere at end of year | 2020-12-31 | $39,073,064 |
| Assets. Other investments not covered elsewhere at beginning of year | 2020-12-31 | $21,467,166 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $133,622,985 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $85,488,536 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $121,629,550 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $73,897,196 |
| Administrative expenses (other) incurred | 2020-12-31 | $156,055 |
| 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 | $357,887 |
| Value of net income/loss | 2020-12-31 | $46,935,595 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $1,906,657,110 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $1,284,852,285 |
| Interest earned on other investments | 2020-12-31 | $579,915 |
| Income. Interest from US Government securities | 2020-12-31 | $15,615,454 |
| Income. Interest from corporate debt instruments | 2020-12-31 | $9,457,458 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $13,222,142 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $3,626,350 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $3,626,350 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $25,274 |
| Asset value of US Government securities at end of year | 2020-12-31 | $1,306,428,872 |
| Asset value of US Government securities at beginning of year | 2020-12-31 | $894,645,600 |
| Asset. Corporate debt instrument preferred debt at end of year | 2020-12-31 | $345,122,137 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2020-12-31 | $229,118,345 |
| Asset. Corporate debt instrument debt (other) at end of year | 2020-12-31 | $190,817,460 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2020-12-31 | $124,045,597 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $761,006,052 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $756,702,788 |
| 2019 : STATE STREET U.S. SHORT-TERM 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 | $12,274,611 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $12,274,611 |
| Total transfer of assets to this plan | 2019-12-31 | $625,890,474 |
| Total transfer of assets from this plan | 2019-12-31 | $320,114,399 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $73,897,196 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $34,817,006 |
| Total income from all sources (including contributions) | 2019-12-31 | $43,481,775 |
| Total loss/gain on sale of assets | 2019-12-31 | $4,314,168 |
| Total of all expenses incurred | 2019-12-31 | $133,632 |
| 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 | $1,358,749,481 |
| Value of total assets at beginning of year | 2019-12-31 | $970,545,073 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $133,632 |
| Total interest from all sources | 2019-12-31 | $26,892,996 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $0 |
| Administrative expenses professional fees incurred | 2019-12-31 | $17,918 |
| Assets. Other investments not covered elsewhere at end of year | 2019-12-31 | $21,467,166 |
| Assets. Other investments not covered elsewhere at beginning of year | 2019-12-31 | $14,634,318 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $85,488,536 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $17,575,382 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $73,897,196 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $34,817,006 |
| Administrative expenses (other) incurred | 2019-12-31 | $115,714 |
| Total non interest bearing cash at end of year | 2019-12-31 | $357,887 |
| Total non interest bearing cash at beginning of year | 2019-12-31 | $0 |
| Value of net income/loss | 2019-12-31 | $43,348,143 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $1,284,852,285 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $935,728,067 |
| Interest earned on other investments | 2019-12-31 | $451,024 |
| Income. Interest from US Government securities | 2019-12-31 | $17,365,607 |
| Income. Interest from corporate debt instruments | 2019-12-31 | $9,008,909 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $3,626,350 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $12,392,289 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $12,392,289 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $67,456 |
| Asset value of US Government securities at end of year | 2019-12-31 | $894,645,600 |
| Asset value of US Government securities at beginning of year | 2019-12-31 | $642,403,316 |
| Asset. Corporate debt instrument preferred debt at end of year | 2019-12-31 | $229,118,345 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2019-12-31 | $185,674,580 |
| Asset. Corporate debt instrument debt (other) at end of year | 2019-12-31 | $124,045,597 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2019-12-31 | $97,865,188 |
| Aggregate proceeds on sale of assets | 2019-12-31 | $562,137,755 |
| Aggregate carrying amount (costs) on sale of assets | 2019-12-31 | $557,823,587 |
| 2018 : STATE STREET U.S. SHORT-TERM 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 | $-1,915,795 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-1,915,795 |
| Total transfer of assets to this plan | 2018-12-31 | $331,481,416 |
| Total transfer of assets from this plan | 2018-12-31 | $316,609,437 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $34,817,006 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $207,244,088 |
| Total income from all sources (including contributions) | 2018-12-31 | $14,227,808 |
| Total loss/gain on sale of assets | 2018-12-31 | $-2,053,727 |
| Total of all expenses incurred | 2018-12-31 | $109,886 |
| 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 | $970,545,073 |
| Value of total assets at beginning of year | 2018-12-31 | $1,113,982,254 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $109,886 |
| Total interest from all sources | 2018-12-31 | $18,197,330 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $0 |
| Administrative expenses professional fees incurred | 2018-12-31 | $17,426 |
| Assets. Other investments not covered elsewhere at end of year | 2018-12-31 | $14,634,318 |
| Assets. Other investments not covered elsewhere at beginning of year | 2018-12-31 | $15,357,410 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $17,575,382 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $231,372,916 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $34,817,006 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $207,244,088 |
| Administrative expenses (other) incurred | 2018-12-31 | $92,460 |
| Value of net income/loss | 2018-12-31 | $14,117,922 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $935,728,067 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $906,738,166 |
| Income. Interest from loans (other than to participants) | 2018-12-31 | $0 |
| Interest earned on other investments | 2018-12-31 | $331,145 |
| Income. Interest from US Government securities | 2018-12-31 | $11,253,655 |
| Income. Interest from corporate debt instruments | 2018-12-31 | $6,570,884 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $12,392,289 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $3,083,731 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $3,083,731 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $41,646 |
| Asset value of US Government securities at end of year | 2018-12-31 | $642,403,316 |
| Asset value of US Government securities at beginning of year | 2018-12-31 | $589,314,980 |
| Asset. Corporate debt instrument preferred debt at end of year | 2018-12-31 | $185,674,580 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2018-12-31 | $186,635,950 |
| Asset. Corporate debt instrument debt (other) at end of year | 2018-12-31 | $97,865,188 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2018-12-31 | $88,217,267 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $463,999,465 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $466,053,192 |
| 2017 : STATE STREET U.S. SHORT-TERM 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 | $-3,810,201 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $-3,810,201 |
| Total transfer of assets to this plan | 2017-12-31 | $248,960,937 |
| Total transfer of assets from this plan | 2017-12-31 | $111,453,291 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $207,244,088 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $26,233,080 |
| Total income from all sources (including contributions) | 2017-12-31 | $6,225,120 |
| Total loss/gain on sale of assets | 2017-12-31 | $-1,219,955 |
| Total of all expenses incurred | 2017-12-31 | $99,075 |
| 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 | $1,113,982,254 |
| Value of total assets at beginning of year | 2017-12-31 | $789,337,555 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $99,075 |
| Total interest from all sources | 2017-12-31 | $11,255,276 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $0 |
| Administrative expenses professional fees incurred | 2017-12-31 | $26,533 |
| Assets. Other investments not covered elsewhere at end of year | 2017-12-31 | $15,357,410 |
| Assets. Other investments not covered elsewhere at beginning of year | 2017-12-31 | $13,871,586 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $231,372,916 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $25,105,550 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $207,244,088 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $26,233,080 |
| Administrative expenses (other) incurred | 2017-12-31 | $72,542 |
| Total non interest bearing cash at end of year | 2017-12-31 | $0 |
| Total non interest bearing cash at beginning of year | 2017-12-31 | $2,486 |
| Value of net income/loss | 2017-12-31 | $6,126,045 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $906,738,166 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $763,104,475 |
| Interest earned on other investments | 2017-12-31 | $257,721 |
| Income. Interest from US Government securities | 2017-12-31 | $6,384,415 |
| Income. Interest from corporate debt instruments | 2017-12-31 | $4,580,797 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $3,083,731 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $9,340,532 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $9,340,532 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $32,343 |
| Asset value of US Government securities at end of year | 2017-12-31 | $589,314,980 |
| Asset value of US Government securities at beginning of year | 2017-12-31 | $499,855,565 |
| Asset. Corporate debt instrument preferred debt at end of year | 2017-12-31 | $186,635,950 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2017-12-31 | $159,037,728 |
| Asset. Corporate debt instrument debt (other) at end of year | 2017-12-31 | $88,217,267 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2017-12-31 | $82,124,108 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $423,537,994 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $424,757,949 |
| 2016 : STATE STREET U.S. SHORT-TERM 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 | $-745,367 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $-745,367 |
| Total transfer of assets to this plan | 2016-12-31 | $258,511,779 |
| Total transfer of assets from this plan | 2016-12-31 | $129,111,502 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $26,233,080 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $23,308,683 |
| Expenses. Interest paid | 2016-12-31 | $0 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2016-12-31 | $0 |
| Total income from all sources (including contributions) | 2016-12-31 | $7,721,980 |
| Total loss/gain on sale of assets | 2016-12-31 | $345,422 |
| Total of all expenses incurred | 2016-12-31 | $84,266 |
| 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 | $789,337,555 |
| Value of total assets at beginning of year | 2016-12-31 | $649,375,167 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $84,266 |
| Total interest from all sources | 2016-12-31 | $8,121,925 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $0 |
| Administrative expenses professional fees incurred | 2016-12-31 | $27,725 |
| Assets. Other investments not covered elsewhere at end of year | 2016-12-31 | $13,871,586 |
| Assets. Other investments not covered elsewhere at beginning of year | 2016-12-31 | $11,597,955 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $25,105,550 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $23,032,172 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $26,233,080 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $23,308,683 |
| Other income not declared elsewhere | 2016-12-31 | $0 |
| Administrative expenses (other) incurred | 2016-12-31 | $56,541 |
| Total non interest bearing cash at end of year | 2016-12-31 | $2,486 |
| Total non interest bearing cash at beginning of year | 2016-12-31 | $0 |
| Value of net income/loss | 2016-12-31 | $7,637,714 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $763,104,475 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $626,066,484 |
| Interest earned on other investments | 2016-12-31 | $192,358 |
| Income. Interest from US Government securities | 2016-12-31 | $4,349,089 |
| Income. Interest from corporate debt instruments | 2016-12-31 | $3,555,919 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $9,340,532 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $13,618,015 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $13,618,015 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $24,559 |
| Asset value of US Government securities at end of year | 2016-12-31 | $499,855,565 |
| Asset value of US Government securities at beginning of year | 2016-12-31 | $421,182,097 |
| Asset. Corporate debt instrument preferred debt at end of year | 2016-12-31 | $159,037,728 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2016-12-31 | $119,106,423 |
| Asset. Corporate debt instrument debt (other) at end of year | 2016-12-31 | $82,124,108 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2016-12-31 | $60,838,505 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $416,975,023 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $416,629,601 |
| 2015 : STATE STREET U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of real estate assets | 2015-12-31 | $0 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-948,155 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-948,155 |
| Total transfer of assets to this plan | 2015-12-31 | $470,807,742 |
| Total transfer of assets from this plan | 2015-12-31 | $346,970,502 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $23,308,683 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $42,060,173 |
| Total income from all sources (including contributions) | 2015-12-31 | $3,064,695 |
| Total loss/gain on sale of assets | 2015-12-31 | $-1,188,621 |
| Total of all expenses incurred | 2015-12-31 | $86,664 |
| 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 | $649,375,167 |
| Value of total assets at beginning of year | 2015-12-31 | $541,311,386 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $86,664 |
| Total interest from all sources | 2015-12-31 | $5,201,471 |
| 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 | $21,665 |
| Assets. Other investments not covered elsewhere at end of year | 2015-12-31 | $11,597,955 |
| Assets. Other investments not covered elsewhere at beginning of year | 2015-12-31 | $9,156,745 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $23,032,172 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $39,284,700 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $23,308,683 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $42,060,173 |
| Administrative expenses (other) incurred | 2015-12-31 | $64,999 |
| Value of net income/loss | 2015-12-31 | $2,978,031 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $626,066,484 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $499,251,213 |
| Investment advisory and management fees | 2015-12-31 | $0 |
| Income. Interest from loans (other than to participants) | 2015-12-31 | $0 |
| Interest earned on other investments | 2015-12-31 | $147,847 |
| Income. Interest from US Government securities | 2015-12-31 | $3,000,850 |
| Income. Interest from corporate debt instruments | 2015-12-31 | $2,046,070 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $13,618,015 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $19,251,320 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $19,251,320 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $6,704 |
| Asset value of US Government securities at end of year | 2015-12-31 | $421,182,097 |
| Asset value of US Government securities at beginning of year | 2015-12-31 | $353,451,894 |
| 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 | $119,106,423 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2015-12-31 | $90,955,092 |
| Asset. Corporate debt instrument debt (other) at end of year | 2015-12-31 | $60,838,505 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2015-12-31 | $29,211,635 |
| Contract administrator fees | 2015-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $340,083,098 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $341,271,719 |
| 2014 : STATE STREET U.S. SHORT-TERM 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 | $772,290 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $772,290 |
| Total transfer of assets to this plan | 2014-12-31 | $283,808,673 |
| Total transfer of assets from this plan | 2014-12-31 | $117,066,102 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $42,060,173 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $15,510,781 |
| Total income from all sources (including contributions) | 2014-12-31 | $2,644,085 |
| Total loss/gain on sale of assets | 2014-12-31 | $-859,111 |
| Total of all expenses incurred | 2014-12-31 | $66,608 |
| 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 | $541,311,386 |
| Value of total assets at beginning of year | 2014-12-31 | $345,441,946 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $66,608 |
| Total interest from all sources | 2014-12-31 | $2,730,906 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $0 |
| Administrative expenses professional fees incurred | 2014-12-31 | $18,338 |
| Assets. Other investments not covered elsewhere at end of year | 2014-12-31 | $9,156,745 |
| Assets. Other investments not covered elsewhere at beginning of year | 2014-12-31 | $6,067,367 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $39,284,700 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $10,025,379 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $42,060,173 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $15,510,781 |
| Administrative expenses (other) incurred | 2014-12-31 | $48,270 |
| Value of net income/loss | 2014-12-31 | $2,577,477 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $499,251,213 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $329,931,165 |
| Interest earned on other investments | 2014-12-31 | $94,325 |
| Income. Interest from US Government securities | 2014-12-31 | $1,551,494 |
| Income. Interest from corporate debt instruments | 2014-12-31 | $1,078,382 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $19,251,320 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $10,590,735 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $10,590,735 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $6,705 |
| Asset value of US Government securities at end of year | 2014-12-31 | $353,451,894 |
| Asset value of US Government securities at beginning of year | 2014-12-31 | $239,148,678 |
| Asset. Corporate debt instrument preferred debt at end of year | 2014-12-31 | $90,955,092 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2014-12-31 | $63,575,407 |
| Asset. Corporate debt instrument debt (other) at end of year | 2014-12-31 | $29,211,635 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2014-12-31 | $16,034,380 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $231,951,443 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $232,810,554 |
| 2013 : STATE STREET U.S. SHORT-TERM 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 | $1,009,858 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $1,009,858 |
| Total transfer of assets to this plan | 2013-12-31 | $244,092,232 |
| Total transfer of assets from this plan | 2013-12-31 | $163,029,329 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $15,510,781 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $12,583,468 |
| Total income from all sources (including contributions) | 2013-12-31 | $1,707,560 |
| Total loss/gain on sale of assets | 2013-12-31 | $-952,941 |
| Total of all expenses incurred | 2013-12-31 | $56,609 |
| 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 | $345,441,946 |
| Value of total assets at beginning of year | 2013-12-31 | $259,800,779 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $56,609 |
| Total interest from all sources | 2013-12-31 | $1,650,643 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $0 |
| Administrative expenses professional fees incurred | 2013-12-31 | $15,610 |
| Assets. Other investments not covered elsewhere at end of year | 2013-12-31 | $6,067,367 |
| Assets. Other investments not covered elsewhere at beginning of year | 2013-12-31 | $4,315,991 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $10,025,379 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $5,808,759 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $15,510,781 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $12,583,468 |
| Administrative expenses (other) incurred | 2013-12-31 | $40,999 |
| Value of net income/loss | 2013-12-31 | $1,650,951 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $329,931,165 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $247,217,311 |
| Interest earned on other investments | 2013-12-31 | $52,749 |
| Income. Interest from US Government securities | 2013-12-31 | $801,512 |
| Income. Interest from corporate debt instruments | 2013-12-31 | $790,288 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $10,590,735 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $13,055,209 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $13,055,209 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $6,094 |
| Asset value of US Government securities at end of year | 2013-12-31 | $239,148,678 |
| Asset value of US Government securities at beginning of year | 2013-12-31 | $182,348,474 |
| Asset. Corporate debt instrument preferred debt at end of year | 2013-12-31 | $63,575,407 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2013-12-31 | $43,208,440 |
| Asset. Corporate debt instrument debt (other) at end of year | 2013-12-31 | $16,034,380 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2013-12-31 | $11,063,906 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $159,261,452 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $160,214,393 |
| 2012 : STATE STREET U.S. SHORT-TERM 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 | $1,253,455 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $1,253,455 |
| Total transfer of assets to this plan | 2012-12-31 | $208,873,043 |
| Total transfer of assets from this plan | 2012-12-31 | $103,019,320 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $12,583,468 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $6,887,054 |
| Total income from all sources (including contributions) | 2012-12-31 | $2,135,402 |
| Total loss/gain on sale of assets | 2012-12-31 | $-478,946 |
| Total of all expenses incurred | 2012-12-31 | $39,324 |
| 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 | $259,800,779 |
| Value of total assets at beginning of year | 2012-12-31 | $146,154,564 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $39,324 |
| Total interest from all sources | 2012-12-31 | $1,360,893 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $0 |
| Administrative expenses professional fees incurred | 2012-12-31 | $15,023 |
| Assets. Other investments not covered elsewhere at end of year | 2012-12-31 | $4,315,991 |
| Assets. Other investments not covered elsewhere at beginning of year | 2012-12-31 | $2,396,563 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $5,808,759 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $9,106,984 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $12,583,468 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $6,887,054 |
| Administrative expenses (other) incurred | 2012-12-31 | $24,301 |
| Value of net income/loss | 2012-12-31 | $2,096,078 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $247,217,311 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $139,267,510 |
| Interest earned on other investments | 2012-12-31 | $42,237 |
| Income. Interest from US Government securities | 2012-12-31 | $671,522 |
| Income. Interest from corporate debt instruments | 2012-12-31 | $638,071 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $13,055,209 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $7,496,690 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $7,496,690 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $9,063 |
| Asset value of US Government securities at end of year | 2012-12-31 | $182,348,474 |
| Asset value of US Government securities at beginning of year | 2012-12-31 | $100,073,353 |
| Asset. Corporate debt instrument preferred debt at end of year | 2012-12-31 | $43,208,440 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2012-12-31 | $21,438,823 |
| Asset. Corporate debt instrument debt (other) at end of year | 2012-12-31 | $11,063,906 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2012-12-31 | $5,642,151 |
| Aggregate proceeds on sale of assets | 2012-12-31 | $143,609,981 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $144,088,927 |
| 2011 : STATE STREET U.S. SHORT-TERM 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 | $2,038,609 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $2,038,609 |
| Total transfer of assets to this plan | 2011-12-31 | $85,997,163 |
| Total transfer of assets from this plan | 2011-12-31 | $445,947,264 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $6,887,054 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $10,811,762 |
| Total income from all sources (including contributions) | 2011-12-31 | $3,379,220 |
| Total loss/gain on sale of assets | 2011-12-31 | $-1,324,156 |
| Total of all expenses incurred | 2011-12-31 | $46,929 |
| 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 | $146,154,564 |
| Value of total assets at beginning of year | 2011-12-31 | $506,697,082 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $46,929 |
| Total interest from all sources | 2011-12-31 | $2,664,767 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $0 |
| Administrative expenses professional fees incurred | 2011-12-31 | $19,137 |
| Assets. Other investments not covered elsewhere at end of year | 2011-12-31 | $2,396,563 |
| Assets. Other investments not covered elsewhere at beginning of year | 2011-12-31 | $8,156,161 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $9,106,984 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $26,939,085 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $6,887,054 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $10,811,762 |
| Administrative expenses (other) incurred | 2011-12-31 | $27,792 |
| Value of net income/loss | 2011-12-31 | $3,332,291 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $139,267,510 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $495,885,320 |
| Interest earned on other investments | 2011-12-31 | $84,770 |
| Income. Interest from US Government securities | 2011-12-31 | $1,525,570 |
| Income. Interest from corporate debt instruments | 2011-12-31 | $1,046,066 |
| Value of interest in common/collective trusts at beginning of year | 2011-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $7,496,690 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $6,853,007 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $6,853,007 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2011-12-31 | $8,361 |
| Asset value of US Government securities at end of year | 2011-12-31 | $100,073,353 |
| Asset value of US Government securities at beginning of year | 2011-12-31 | $343,795,754 |
| Asset. Corporate debt instrument preferred debt at end of year | 2011-12-31 | $21,438,823 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2011-12-31 | $103,587,753 |
| Asset. Corporate debt instrument debt (other) at end of year | 2011-12-31 | $5,642,151 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2011-12-31 | $17,365,322 |
| Aggregate proceeds on sale of assets | 2011-12-31 | $460,255,569 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $461,579,725 |
| 2010 : STATE STREET U.S. SHORT-TERM GOVERNMENT/CREDIT BOND INDEX NON-LENDING SERIES FUND CLASS A 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $3,941,636 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $3,941,636 |
| Total transfer of assets to this plan | 2010-12-31 | $476,544,388 |
| Total transfer of assets from this plan | 2010-12-31 | $69,467,391 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $10,811,762 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $1,500 |
| Total income from all sources (including contributions) | 2010-12-31 | $8,029,387 |
| Total loss/gain on sale of assets | 2010-12-31 | $-99,558 |
| Total of all expenses incurred | 2010-12-31 | $83,234 |
| Benefit payments and payments to participlants,beneficiaries,insurance carriers and others | 2010-12-31 | $0 |
| Total contributions o plan (from employers,participants, others, non cash contrinutions) | 2010-12-31 | $0 |
| Value of total assets at end of year | 2010-12-31 | $506,697,082 |
| Value of total assets at beginning of year | 2010-12-31 | $80,863,670 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $83,234 |
| Total interest from all sources | 2010-12-31 | $4,187,309 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $0 |
| Administrative expenses professional fees incurred | 2010-12-31 | $11,300 |
| Assets. Other investments not covered elsewhere at end of year | 2010-12-31 | $8,156,161 |
| Assets. Other investments not covered elsewhere at beginning of year | 2010-12-31 | $0 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $26,939,085 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $80,863,670 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $10,811,762 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $1,500 |
| Administrative expenses (other) incurred | 2010-12-31 | $71,934 |
| Value of net income/loss | 2010-12-31 | $7,946,153 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $495,885,320 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $80,862,170 |
| Interest earned on other investments | 2010-12-31 | $83,315 |
| Income. Interest from US Government securities | 2010-12-31 | $2,465,131 |
| Income. Interest from corporate debt instruments | 2010-12-31 | $1,629,232 |
| Value of interest in common/collective trusts at end of year | 2010-12-31 | $0 |
| Value of interest in common/collective trusts at beginning of year | 2010-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $6,853,007 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $0 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $0 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2010-12-31 | $9,631 |
| Asset value of US Government securities at end of year | 2010-12-31 | $343,795,754 |
| Asset value of US Government securities at beginning of year | 2010-12-31 | $0 |
| Asset. Corporate debt instrument preferred debt at end of year | 2010-12-31 | $103,587,753 |
| Asset. Corporate debt instrument preferred debt at beginning of year | 2010-12-31 | $0 |
| Asset. Corporate debt instrument debt (other) at end of year | 2010-12-31 | $17,365,322 |
| Asset. Corporate debt instrument debt (other) at beginning of year | 2010-12-31 | $0 |
| Aggregate proceeds on sale of assets | 2010-12-31 | $224,150,198 |
| Aggregate carrying amount (costs) on sale of assets | 2010-12-31 | $224,249,756 |
