BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. has sponsored the creation of one or more 401k plans.
| Measure | Date | Value |
|---|
| 2023 : MSCI US EQUITY INDEX FUND B 2023 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-12-31 | $607,380,637 |
| Total unrealized appreciation/depreciation of assets | 2023-12-31 | $607,380,637 |
| Total transfer of assets to this plan | 2023-12-31 | $435,456,156 |
| Total transfer of assets from this plan | 2023-12-31 | $1,744,977,503 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $259,679,568 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-12-31 | $304,437,988 |
| Total income from all sources (including contributions) | 2023-12-31 | $1,418,942,675 |
| Total loss/gain on sale of assets | 2023-12-31 | $711,754,062 |
| Total of all expenses incurred | 2023-12-31 | $187,167 |
| Value of total assets at end of year | 2023-12-31 | $5,707,491,216 |
| Value of total assets at beginning of year | 2023-12-31 | $5,643,015,475 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-12-31 | $187,167 |
| Total interest from all sources | 2023-12-31 | $1,636,609 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-12-31 | $96,798,127 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2023-12-31 | $52,839 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-12-31 | $11,845,933 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-12-31 | $5,700,419 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-12-31 | $259,679,568 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-12-31 | $304,437,988 |
| Other income not declared elsewhere | 2023-12-31 | $1,023 |
| Administrative expenses (other) incurred | 2023-12-31 | $650 |
| Total non interest bearing cash at end of year | 2023-12-31 | $1,060,000 |
| Total non interest bearing cash at beginning of year | 2023-12-31 | $1,075,000 |
| Value of net income/loss | 2023-12-31 | $1,418,755,508 |
| Value of net assets at end of year (total assets less liabilities) | 2023-12-31 | $5,447,811,648 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-12-31 | $5,338,577,487 |
| Investment advisory and management fees | 2023-12-31 | $172,151 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2023-12-31 | $7,187,087 |
| Interest earned on other investments | 2023-12-31 | $828,048 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-12-31 | $273,003,530 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2023-12-31 | $317,445,310 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2023-12-31 | $317,445,310 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-12-31 | $808,561 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2023-12-31 | $1,372,217 |
| Income. Dividends from common stock | 2023-12-31 | $96,745,288 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2023-12-31 | $5,421,581,753 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2023-12-31 | $5,311,607,659 |
| Aggregate proceeds on sale of assets | 2023-12-31 | $1,965,689,180 |
| Aggregate carrying amount (costs) on sale of assets | 2023-12-31 | $1,253,935,118 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2023-01-01 | $607,380,637 |
| Total unrealized appreciation/depreciation of assets | 2023-01-01 | $607,380,637 |
| Total transfer of assets to this plan | 2023-01-01 | $435,456,156 |
| Total transfer of assets from this plan | 2023-01-01 | $1,744,977,503 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $259,679,568 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2023-01-01 | $304,437,988 |
| Total income from all sources (including contributions) | 2023-01-01 | $1,418,942,675 |
| Total loss/gain on sale of assets | 2023-01-01 | $711,754,062 |
| Total of all expenses incurred | 2023-01-01 | $187,167 |
| Value of total assets at end of year | 2023-01-01 | $5,707,491,216 |
| Value of total assets at beginning of year | 2023-01-01 | $5,643,015,475 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2023-01-01 | $187,167 |
| Total interest from all sources | 2023-01-01 | $1,636,609 |
| Total dividends received (eg from common stock, registered investment company shares) | 2023-01-01 | $96,798,127 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2023-01-01 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2023-01-01 | $52,839 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2023-01-01 | $11,845,933 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2023-01-01 | $5,700,419 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2023-01-01 | $259,679,568 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2023-01-01 | $304,437,988 |
| Other income not declared elsewhere | 2023-01-01 | $1,023 |
| Administrative expenses (other) incurred | 2023-01-01 | $650 |
| Total non interest bearing cash at end of year | 2023-01-01 | $1,060,000 |
| Total non interest bearing cash at beginning of year | 2023-01-01 | $1,075,000 |
| Value of net income/loss | 2023-01-01 | $1,418,755,508 |
| Value of net assets at end of year (total assets less liabilities) | 2023-01-01 | $5,447,811,648 |
| Value of net assets at beginning of year (total assets less liabilities) | 2023-01-01 | $5,338,577,487 |
| Investment advisory and management fees | 2023-01-01 | $172,151 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2023-01-01 | $7,187,087 |
| Interest earned on other investments | 2023-01-01 | $828,048 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2023-01-01 | $273,003,530 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2023-01-01 | $808,561 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2023-01-01 | $1,372,217 |
| Income. Dividends from common stock | 2023-01-01 | $96,745,288 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2023-01-01 | $5,421,581,753 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2023-01-01 | $5,311,607,659 |
| Aggregate proceeds on sale of assets | 2023-01-01 | $1,965,689,180 |
| Aggregate carrying amount (costs) on sale of assets | 2023-01-01 | $1,253,935,118 |
| 2022 : MSCI US EQUITY INDEX FUND B 2022 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-12-31 | $-2,310,179,080 |
| Total unrealized appreciation/depreciation of assets | 2022-12-31 | $-2,310,179,080 |
| Total transfer of assets to this plan | 2022-12-31 | $620,521,647 |
| Total transfer of assets from this plan | 2022-12-31 | $1,638,983,189 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $304,437,988 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-12-31 | $269,471,744 |
| Total income from all sources (including contributions) | 2022-12-31 | $-1,511,946,049 |
| Total loss/gain on sale of assets | 2022-12-31 | $700,687,667 |
| Total of all expenses incurred | 2022-12-31 | $193,455 |
| Value of total assets at end of year | 2022-12-31 | $5,643,015,475 |
| Value of total assets at beginning of year | 2022-12-31 | $8,138,650,277 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-12-31 | $193,455 |
| Total interest from all sources | 2022-12-31 | $864,277 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-12-31 | $99,684,845 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2022-12-31 | $144,756 |
| Administrative expenses professional fees incurred | 2022-12-31 | $13,871 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-12-31 | $5,700,419 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-12-31 | $4,620,049 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-12-31 | $304,437,988 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-12-31 | $269,471,744 |
| Administrative expenses (other) incurred | 2022-12-31 | $-6,688 |
| Total non interest bearing cash at end of year | 2022-12-31 | $1,075,000 |
| Value of net income/loss | 2022-12-31 | $-1,512,139,504 |
| Value of net assets at end of year (total assets less liabilities) | 2022-12-31 | $5,338,577,487 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-12-31 | $7,869,178,533 |
| Investment advisory and management fees | 2022-12-31 | $186,272 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2022-12-31 | $7,187,087 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2022-12-31 | $18,574,018 |
| Interest earned on other investments | 2022-12-31 | $579,706 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-12-31 | $317,445,310 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2022-12-31 | $279,240,002 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2022-12-31 | $279,240,002 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-12-31 | $284,571 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2022-12-31 | $-3,003,758 |
| Income. Dividends from common stock | 2022-12-31 | $99,540,089 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2022-12-31 | $5,311,607,659 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2022-12-31 | $7,836,216,208 |
| Aggregate proceeds on sale of assets | 2022-12-31 | $1,950,711,354 |
| Aggregate carrying amount (costs) on sale of assets | 2022-12-31 | $1,250,023,687 |
| Unrealized appreciation/depreciation of other (non real estate) assets | 2022-01-01 | $-2,310,179,080 |
| Total unrealized appreciation/depreciation of assets | 2022-01-01 | $-2,310,179,080 |
| Total transfer of assets to this plan | 2022-01-01 | $620,521,647 |
| Total transfer of assets from this plan | 2022-01-01 | $1,638,983,189 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $304,437,988 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2022-01-01 | $269,471,744 |
| Total income from all sources (including contributions) | 2022-01-01 | $-1,511,946,049 |
| Total loss/gain on sale of assets | 2022-01-01 | $700,687,667 |
| Total of all expenses incurred | 2022-01-01 | $193,455 |
| Value of total assets at end of year | 2022-01-01 | $5,643,015,475 |
| Value of total assets at beginning of year | 2022-01-01 | $8,138,650,277 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2022-01-01 | $193,455 |
| Total interest from all sources | 2022-01-01 | $864,277 |
| Total dividends received (eg from common stock, registered investment company shares) | 2022-01-01 | $99,684,845 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2022-01-01 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2022-01-01 | $144,756 |
| Administrative expenses professional fees incurred | 2022-01-01 | $13,871 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2022-01-01 | $5,700,419 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2022-01-01 | $4,620,049 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2022-01-01 | $304,437,988 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2022-01-01 | $269,471,744 |
| Administrative expenses (other) incurred | 2022-01-01 | $-6,688 |
| Total non interest bearing cash at end of year | 2022-01-01 | $1,075,000 |
| Value of net income/loss | 2022-01-01 | $-1,512,139,504 |
| Value of net assets at end of year (total assets less liabilities) | 2022-01-01 | $5,338,577,487 |
| Value of net assets at beginning of year (total assets less liabilities) | 2022-01-01 | $7,869,178,533 |
| Investment advisory and management fees | 2022-01-01 | $186,272 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2022-01-01 | $7,187,087 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2022-01-01 | $18,574,018 |
| Interest earned on other investments | 2022-01-01 | $579,706 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2022-01-01 | $317,445,310 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2022-01-01 | $284,571 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2022-01-01 | $-3,003,758 |
| Income. Dividends from common stock | 2022-01-01 | $99,540,089 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2022-01-01 | $5,311,607,659 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2022-01-01 | $7,836,216,208 |
| Aggregate proceeds on sale of assets | 2022-01-01 | $1,950,711,354 |
| Aggregate carrying amount (costs) on sale of assets | 2022-01-01 | $1,250,023,687 |
| 2021 : MSCI US EQUITY INDEX FUND B 2021 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2021-12-31 | $1,025,182,693 |
| Total unrealized appreciation/depreciation of assets | 2021-12-31 | $1,025,182,693 |
| Total transfer of assets to this plan | 2021-12-31 | $1,071,574,200 |
| Total transfer of assets from this plan | 2021-12-31 | $852,499,042 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $269,471,744 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2021-12-31 | $165,594,410 |
| Total income from all sources (including contributions) | 2021-12-31 | $1,575,354,078 |
| Total loss/gain on sale of assets | 2021-12-31 | $453,052,603 |
| Total of all expenses incurred | 2021-12-31 | $184,561 |
| Value of total assets at end of year | 2021-12-31 | $8,138,650,277 |
| Value of total assets at beginning of year | 2021-12-31 | $6,240,528,268 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2021-12-31 | $184,561 |
| Total interest from all sources | 2021-12-31 | $387,463 |
| Total dividends received (eg from common stock, registered investment company shares) | 2021-12-31 | $91,385,516 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2021-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2021-12-31 | $254,008 |
| Administrative expenses professional fees incurred | 2021-12-31 | $10,925 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2021-12-31 | $4,620,049 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2021-12-31 | $35,119,430 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2021-12-31 | $269,471,744 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2021-12-31 | $165,594,410 |
| Administrative expenses (other) incurred | 2021-12-31 | $-18,813 |
| Total non interest bearing cash at beginning of year | 2021-12-31 | $21 |
| Value of net income/loss | 2021-12-31 | $1,575,169,517 |
| Value of net assets at end of year (total assets less liabilities) | 2021-12-31 | $7,869,178,533 |
| Value of net assets at beginning of year (total assets less liabilities) | 2021-12-31 | $6,074,933,858 |
| Investment advisory and management fees | 2021-12-31 | $192,449 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2021-12-31 | $18,574,018 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2021-12-31 | $26,818,134 |
| Interest earned on other investments | 2021-12-31 | $372,655 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2021-12-31 | $279,240,002 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2021-12-31 | $137,004,595 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2021-12-31 | $137,004,595 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2021-12-31 | $14,808 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2021-12-31 | $5,345,803 |
| Income. Dividends from common stock | 2021-12-31 | $91,131,508 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2021-12-31 | $7,836,216,208 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2021-12-31 | $6,041,586,088 |
| Aggregate proceeds on sale of assets | 2021-12-31 | $1,130,690,094 |
| Aggregate carrying amount (costs) on sale of assets | 2021-12-31 | $677,637,491 |
| 2020 : MSCI US EQUITY INDEX FUND B 2020 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2020-12-31 | $861,208,132 |
| Total unrealized appreciation/depreciation of assets | 2020-12-31 | $861,208,132 |
| Total transfer of assets to this plan | 2020-12-31 | $967,264,037 |
| Total transfer of assets from this plan | 2020-12-31 | $731,004,719 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $165,594,410 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2020-12-31 | $322,603,454 |
| Total income from all sources (including contributions) | 2020-12-31 | $1,135,789,632 |
| Total loss/gain on sale of assets | 2020-12-31 | $174,857,632 |
| Total of all expenses incurred | 2020-12-31 | $115,339 |
| Value of total assets at end of year | 2020-12-31 | $6,240,528,268 |
| Value of total assets at beginning of year | 2020-12-31 | $5,025,603,701 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2020-12-31 | $115,339 |
| Total interest from all sources | 2020-12-31 | $867,300 |
| Total dividends received (eg from common stock, registered investment company shares) | 2020-12-31 | $88,859,053 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2020-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2020-12-31 | $774,754 |
| Administrative expenses professional fees incurred | 2020-12-31 | $10,968 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2020-12-31 | $35,119,430 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2020-12-31 | $5,379,161 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2020-12-31 | $165,594,410 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2020-12-31 | $322,603,454 |
| Administrative expenses (other) incurred | 2020-12-31 | $-45,781 |
| Total non interest bearing cash at end of year | 2020-12-31 | $21 |
| Total non interest bearing cash at beginning of year | 2020-12-31 | $2,130 |
| Value of net income/loss | 2020-12-31 | $1,135,674,293 |
| Value of net assets at end of year (total assets less liabilities) | 2020-12-31 | $6,074,933,858 |
| Value of net assets at beginning of year (total assets less liabilities) | 2020-12-31 | $4,703,000,247 |
| Investment advisory and management fees | 2020-12-31 | $150,152 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2020-12-31 | $26,818,134 |
| Value of interest in registered invesment companies (eg mutual funds) at beginning of year | 2020-12-31 | $66,108,556 |
| Interest earned on other investments | 2020-12-31 | $843,159 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2020-12-31 | $137,004,595 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2020-12-31 | $323,911,506 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2020-12-31 | $323,911,506 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2020-12-31 | $24,141 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2020-12-31 | $9,997,515 |
| Income. Dividends from common stock | 2020-12-31 | $88,084,299 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2020-12-31 | $6,041,586,088 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2020-12-31 | $4,630,202,348 |
| Aggregate proceeds on sale of assets | 2020-12-31 | $1,149,311,182 |
| Aggregate carrying amount (costs) on sale of assets | 2020-12-31 | $974,453,550 |
| 2019 : MSCI US EQUITY INDEX FUND B 2019 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2019-12-31 | $848,691,022 |
| Total unrealized appreciation/depreciation of assets | 2019-12-31 | $848,691,022 |
| Total transfer of assets to this plan | 2019-12-31 | $740,318,431 |
| Total transfer of assets from this plan | 2019-12-31 | $915,321,547 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $322,603,454 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2019-12-31 | $220,117,377 |
| Total income from all sources (including contributions) | 2019-12-31 | $1,162,629,871 |
| Total loss/gain on sale of assets | 2019-12-31 | $223,025,582 |
| Total of all expenses incurred | 2019-12-31 | $133,724 |
| Value of total assets at end of year | 2019-12-31 | $5,025,603,701 |
| Value of total assets at beginning of year | 2019-12-31 | $3,935,624,593 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2019-12-31 | $133,724 |
| Total interest from all sources | 2019-12-31 | $1,029,450 |
| Total dividends received (eg from common stock, registered investment company shares) | 2019-12-31 | $85,830,382 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2019-12-31 | No |
| Total dividends received from registered investment company shares (eg mutual funds) | 2019-12-31 | $564,814 |
| Administrative expenses professional fees incurred | 2019-12-31 | $14,001 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2019-12-31 | $5,379,161 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2019-12-31 | $19,385,072 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2019-12-31 | $322,603,454 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2019-12-31 | $220,117,377 |
| Administrative expenses (other) incurred | 2019-12-31 | $-14,312 |
| Total non interest bearing cash at end of year | 2019-12-31 | $2,130 |
| Total non interest bearing cash at beginning of year | 2019-12-31 | $9,930 |
| Value of net income/loss | 2019-12-31 | $1,162,496,147 |
| Value of net assets at end of year (total assets less liabilities) | 2019-12-31 | $4,703,000,247 |
| Value of net assets at beginning of year (total assets less liabilities) | 2019-12-31 | $3,715,507,216 |
| Investment advisory and management fees | 2019-12-31 | $134,035 |
| Value of interest in registered invesment companies (eg mutual funds) at end of year | 2019-12-31 | $66,108,556 |
| Interest earned on other investments | 2019-12-31 | $932,213 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2019-12-31 | $323,911,506 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2019-12-31 | $209,171,001 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2019-12-31 | $209,171,001 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2019-12-31 | $97,237 |
| Net investment gain/loss from registered investment companies (e.g. mutual funds) | 2019-12-31 | $4,053,435 |
| Income. Dividends from common stock | 2019-12-31 | $85,265,568 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2019-12-31 | $4,630,202,348 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2019-12-31 | $3,707,058,590 |
| Aggregate proceeds on sale of assets | 2019-12-31 | $825,301,346 |
| Aggregate carrying amount (costs) on sale of assets | 2019-12-31 | $602,275,764 |
| 2018 : MSCI US EQUITY INDEX FUND B 2018 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2018-12-31 | $-689,441,355 |
| Total unrealized appreciation/depreciation of assets | 2018-12-31 | $-689,441,355 |
| Total transfer of assets to this plan | 2018-12-31 | $737,088,163 |
| Total transfer of assets from this plan | 2018-12-31 | $1,431,187,052 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $220,117,377 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2018-12-31 | $542,430,008 |
| Expenses. Interest paid | 2018-12-31 | $12 |
| Amount of participant contributions which was failed to transmit to the plan within the time period described in 29 CFR 251.3-102 | 2018-12-31 | $12 |
| Total income from all sources (including contributions) | 2018-12-31 | $-145,461,365 |
| Total loss/gain on sale of assets | 2018-12-31 | $455,405,435 |
| Total of all expenses incurred | 2018-12-31 | $211,909 |
| Value of total assets at end of year | 2018-12-31 | $3,935,624,593 |
| Value of total assets at beginning of year | 2018-12-31 | $5,097,709,387 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2018-12-31 | $211,897 |
| Total interest from all sources | 2018-12-31 | $826,738 |
| Total dividends received (eg from common stock, registered investment company shares) | 2018-12-31 | $87,747,839 |
| Has a resolution to terminate the plan been adopted during the plan year or any prior plan year | 2018-12-31 | No |
| Administrative expenses professional fees incurred | 2018-12-31 | $15,454 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2018-12-31 | $19,385,072 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2018-12-31 | $285,001,777 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2018-12-31 | $220,117,377 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2018-12-31 | $542,430,008 |
| Other income not declared elsewhere | 2018-12-31 | $-22 |
| Administrative expenses (other) incurred | 2018-12-31 | $6,343 |
| Total non interest bearing cash at end of year | 2018-12-31 | $9,930 |
| Value of net income/loss | 2018-12-31 | $-145,673,274 |
| Value of net assets at end of year (total assets less liabilities) | 2018-12-31 | $3,715,507,216 |
| Value of net assets at beginning of year (total assets less liabilities) | 2018-12-31 | $4,555,279,379 |
| Investment advisory and management fees | 2018-12-31 | $190,100 |
| Interest earned on other investments | 2018-12-31 | $738,614 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2018-12-31 | $209,171,001 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2018-12-31 | $266,912,585 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2018-12-31 | $266,912,585 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2018-12-31 | $88,124 |
| Income. Dividends from common stock | 2018-12-31 | $87,747,839 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2018-12-31 | $3,707,058,590 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2018-12-31 | $4,545,795,025 |
| Aggregate proceeds on sale of assets | 2018-12-31 | $1,360,279,068 |
| Aggregate carrying amount (costs) on sale of assets | 2018-12-31 | $904,873,633 |
| 2017 : MSCI US EQUITY INDEX FUND B 2017 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2017-12-31 | $543,526,831 |
| Total unrealized appreciation/depreciation of assets | 2017-12-31 | $543,526,831 |
| Total transfer of assets to this plan | 2017-12-31 | $601,218,659 |
| Total transfer of assets from this plan | 2017-12-31 | $471,562,532 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $542,430,008 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2017-12-31 | $187,478,215 |
| Total income from all sources (including contributions) | 2017-12-31 | $784,164,280 |
| Total loss/gain on sale of assets | 2017-12-31 | $160,206,402 |
| Total of all expenses incurred | 2017-12-31 | $263,265 |
| 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 | $5,097,709,387 |
| Value of total assets at beginning of year | 2017-12-31 | $3,829,200,452 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2017-12-31 | $263,265 |
| Total interest from all sources | 2017-12-31 | $805,039 |
| Total dividends received (eg from common stock, registered investment company shares) | 2017-12-31 | $79,626,008 |
| Administrative expenses professional fees incurred | 2017-12-31 | $14,145 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2017-12-31 | $285,001,777 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2017-12-31 | $18,910,640 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2017-12-31 | $542,430,008 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2017-12-31 | $187,478,215 |
| Value of net income/loss | 2017-12-31 | $783,901,015 |
| Value of net assets at end of year (total assets less liabilities) | 2017-12-31 | $4,555,279,379 |
| Value of net assets at beginning of year (total assets less liabilities) | 2017-12-31 | $3,641,722,237 |
| Investment advisory and management fees | 2017-12-31 | $249,120 |
| Interest earned on other investments | 2017-12-31 | $756,133 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2017-12-31 | $266,912,585 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2017-12-31 | $174,298,941 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2017-12-31 | $174,298,941 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2017-12-31 | $48,906 |
| Income. Dividends from common stock | 2017-12-31 | $79,626,008 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2017-12-31 | $4,545,795,025 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2017-12-31 | $3,635,990,871 |
| Aggregate proceeds on sale of assets | 2017-12-31 | $480,848,550 |
| Aggregate carrying amount (costs) on sale of assets | 2017-12-31 | $320,642,148 |
| 2016 : MSCI US EQUITY INDEX FUND B 2016 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2016-12-31 | $100,232,180 |
| Total unrealized appreciation/depreciation of assets | 2016-12-31 | $100,232,180 |
| Total transfer of assets to this plan | 2016-12-31 | $285,595,458 |
| Total transfer of assets from this plan | 2016-12-31 | $644,294,488 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $187,478,215 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2016-12-31 | $307,969,801 |
| Total income from all sources (including contributions) | 2016-12-31 | $398,389,091 |
| Total loss/gain on sale of assets | 2016-12-31 | $218,195,452 |
| Total of all expenses incurred | 2016-12-31 | $242,675 |
| 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 | $3,829,200,452 |
| Value of total assets at beginning of year | 2016-12-31 | $3,910,244,652 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2016-12-31 | $242,675 |
| Total interest from all sources | 2016-12-31 | $894,798 |
| Total dividends received (eg from common stock, registered investment company shares) | 2016-12-31 | $79,066,661 |
| Administrative expenses professional fees incurred | 2016-12-31 | $14,380 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2016-12-31 | $18,910,640 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2016-12-31 | $22,033,102 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2016-12-31 | $187,478,215 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2016-12-31 | $307,969,801 |
| Value of net income/loss | 2016-12-31 | $398,146,416 |
| Value of net assets at end of year (total assets less liabilities) | 2016-12-31 | $3,641,722,237 |
| Value of net assets at beginning of year (total assets less liabilities) | 2016-12-31 | $3,602,274,851 |
| Investment advisory and management fees | 2016-12-31 | $228,295 |
| Interest earned on other investments | 2016-12-31 | $865,729 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2016-12-31 | $174,298,941 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2016-12-31 | $292,279,027 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2016-12-31 | $292,279,027 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2016-12-31 | $29,069 |
| Income. Dividends from common stock | 2016-12-31 | $79,066,661 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2016-12-31 | $3,635,990,871 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2016-12-31 | $3,595,932,523 |
| Aggregate proceeds on sale of assets | 2016-12-31 | $611,144,472 |
| Aggregate carrying amount (costs) on sale of assets | 2016-12-31 | $392,949,020 |
| 2015 : MSCI US EQUITY INDEX FUND B 2015 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2015-12-31 | $-426,450,995 |
| Total unrealized appreciation/depreciation of assets | 2015-12-31 | $-426,450,995 |
| Total transfer of assets to this plan | 2015-12-31 | $443,409,090 |
| Total transfer of assets from this plan | 2015-12-31 | $1,218,700,382 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $307,969,801 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2015-12-31 | $370,352,193 |
| Total income from all sources (including contributions) | 2015-12-31 | $54,848,077 |
| Total loss/gain on sale of assets | 2015-12-31 | $401,671,124 |
| Total of all expenses incurred | 2015-12-31 | $250,108 |
| 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 | $3,910,244,652 |
| Value of total assets at beginning of year | 2015-12-31 | $4,693,320,367 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2015-12-31 | $250,108 |
| Total interest from all sources | 2015-12-31 | $864,612 |
| Total dividends received (eg from common stock, registered investment company shares) | 2015-12-31 | $78,763,336 |
| Administrative expenses professional fees incurred | 2015-12-31 | $15,570 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2015-12-31 | $22,033,102 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2015-12-31 | $32,028,429 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2015-12-31 | $307,969,801 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2015-12-31 | $370,352,193 |
| Value of net income/loss | 2015-12-31 | $54,597,969 |
| Value of net assets at end of year (total assets less liabilities) | 2015-12-31 | $3,602,274,851 |
| Value of net assets at beginning of year (total assets less liabilities) | 2015-12-31 | $4,322,968,174 |
| Investment advisory and management fees | 2015-12-31 | $234,538 |
| Interest earned on other investments | 2015-12-31 | $852,095 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2015-12-31 | $292,279,027 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2015-12-31 | $345,398,587 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2015-12-31 | $345,398,587 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2015-12-31 | $12,517 |
| Income. Dividends from common stock | 2015-12-31 | $78,763,336 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2015-12-31 | $3,595,932,523 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2015-12-31 | $4,315,893,351 |
| Aggregate proceeds on sale of assets | 2015-12-31 | $1,123,573,527 |
| Aggregate carrying amount (costs) on sale of assets | 2015-12-31 | $721,902,403 |
| 2014 : MSCI US EQUITY INDEX FUND B 2014 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2014-12-31 | $116,273,595 |
| Total unrealized appreciation/depreciation of assets | 2014-12-31 | $116,273,595 |
| Total transfer of assets to this plan | 2014-12-31 | $1,828,190,674 |
| Total transfer of assets from this plan | 2014-12-31 | $1,051,981,815 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $370,352,193 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2014-12-31 | $266,945,795 |
| Total income from all sources (including contributions) | 2014-12-31 | $519,871,359 |
| Total loss/gain on sale of assets | 2014-12-31 | $320,965,786 |
| Total of all expenses incurred | 2014-12-31 | $271,913 |
| 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 | $4,693,320,367 |
| Value of total assets at beginning of year | 2014-12-31 | $3,294,105,664 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2014-12-31 | $271,913 |
| Total interest from all sources | 2014-12-31 | $816,540 |
| Total dividends received (eg from common stock, registered investment company shares) | 2014-12-31 | $81,815,438 |
| Administrative expenses professional fees incurred | 2014-12-31 | $14,200 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2014-12-31 | $32,028,429 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2014-12-31 | $7,973,273 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2014-12-31 | $370,352,193 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2014-12-31 | $266,945,795 |
| Value of net income/loss | 2014-12-31 | $519,599,446 |
| Value of net assets at end of year (total assets less liabilities) | 2014-12-31 | $4,322,968,174 |
| Value of net assets at beginning of year (total assets less liabilities) | 2014-12-31 | $3,027,159,869 |
| Investment advisory and management fees | 2014-12-31 | $257,713 |
| Interest earned on other investments | 2014-12-31 | $809,980 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2014-12-31 | $345,398,587 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2014-12-31 | $268,172,490 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2014-12-31 | $268,172,490 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2014-12-31 | $6,560 |
| Income. Dividends from common stock | 2014-12-31 | $81,815,438 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2014-12-31 | $4,315,893,351 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2014-12-31 | $3,017,959,901 |
| Aggregate proceeds on sale of assets | 2014-12-31 | $977,193,382 |
| Aggregate carrying amount (costs) on sale of assets | 2014-12-31 | $656,227,596 |
| 2013 : MSCI US EQUITY INDEX FUND B 2013 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2013-12-31 | $400,622,230 |
| Total unrealized appreciation/depreciation of assets | 2013-12-31 | $400,622,230 |
| Total transfer of assets to this plan | 2013-12-31 | $279,953,633 |
| Total transfer of assets from this plan | 2013-12-31 | $1,310,649,436 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $266,945,795 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2013-12-31 | $188,930,414 |
| Total income from all sources (including contributions) | 2013-12-31 | $898,845,699 |
| Total loss/gain on sale of assets | 2013-12-31 | $429,904,813 |
| Total of all expenses incurred | 2013-12-31 | $221,675 |
| 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 | $3,294,105,664 |
| Value of total assets at beginning of year | 2013-12-31 | $3,348,162,062 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2013-12-31 | $221,675 |
| Total interest from all sources | 2013-12-31 | $946,686 |
| Total dividends received (eg from common stock, registered investment company shares) | 2013-12-31 | $67,371,970 |
| Administrative expenses professional fees incurred | 2013-12-31 | $14,900 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2013-12-31 | $7,973,273 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2013-12-31 | $3,931,215 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2013-12-31 | $266,945,795 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2013-12-31 | $188,930,414 |
| Value of net income/loss | 2013-12-31 | $898,624,024 |
| Value of net assets at end of year (total assets less liabilities) | 2013-12-31 | $3,027,159,869 |
| Value of net assets at beginning of year (total assets less liabilities) | 2013-12-31 | $3,159,231,648 |
| Investment advisory and management fees | 2013-12-31 | $206,775 |
| Interest earned on other investments | 2013-12-31 | $938,528 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2013-12-31 | $268,172,490 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2013-12-31 | $192,225,127 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2013-12-31 | $192,225,127 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2013-12-31 | $8,158 |
| Income. Dividends from common stock | 2013-12-31 | $67,371,970 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2013-12-31 | $3,017,959,901 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2013-12-31 | $3,152,005,720 |
| Aggregate proceeds on sale of assets | 2013-12-31 | $1,317,578,907 |
| Aggregate carrying amount (costs) on sale of assets | 2013-12-31 | $887,674,094 |
| 2012 : MSCI US EQUITY INDEX FUND B 2012 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2012-12-31 | $-133,730,878 |
| Total unrealized appreciation/depreciation of assets | 2012-12-31 | $-133,730,878 |
| Total transfer of assets to this plan | 2012-12-31 | $409,879,269 |
| Total transfer of assets from this plan | 2012-12-31 | $1,841,251,991 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $188,930,414 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2012-12-31 | $678,756,946 |
| Total income from all sources (including contributions) | 2012-12-31 | $558,732,549 |
| Total loss/gain on sale of assets | 2012-12-31 | $605,333,729 |
| Total of all expenses incurred | 2012-12-31 | $255,707 |
| 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 | $3,348,162,062 |
| Value of total assets at beginning of year | 2012-12-31 | $4,710,884,474 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2012-12-31 | $255,707 |
| Total interest from all sources | 2012-12-31 | $1,165,729 |
| Total dividends received (eg from common stock, registered investment company shares) | 2012-12-31 | $85,963,969 |
| Administrative expenses professional fees incurred | 2012-12-31 | $14,800 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2012-12-31 | $3,931,215 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2012-12-31 | $301,339,746 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2012-12-31 | $188,930,414 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2012-12-31 | $678,756,946 |
| Value of net income/loss | 2012-12-31 | $558,476,842 |
| Value of net assets at end of year (total assets less liabilities) | 2012-12-31 | $3,159,231,648 |
| Value of net assets at beginning of year (total assets less liabilities) | 2012-12-31 | $4,032,127,528 |
| Investment advisory and management fees | 2012-12-31 | $240,907 |
| Interest earned on other investments | 2012-12-31 | $1,153,416 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2012-12-31 | $192,225,127 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2012-12-31 | $386,172,763 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2012-12-31 | $386,172,763 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2012-12-31 | $12,313 |
| Income. Dividends from common stock | 2012-12-31 | $85,963,969 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2012-12-31 | $3,152,005,720 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2012-12-31 | $4,023,371,965 |
| Aggregate proceeds on sale of assets | 2012-12-31 | $1,869,618,211 |
| Aggregate carrying amount (costs) on sale of assets | 2012-12-31 | $1,264,284,482 |
| 2011 : MSCI US EQUITY INDEX FUND B 2011 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2011-12-31 | $-116,157,573 |
| Total unrealized appreciation/depreciation of assets | 2011-12-31 | $-116,157,573 |
| Total transfer of assets to this plan | 2011-12-31 | $1,684,232,566 |
| Total transfer of assets from this plan | 2011-12-31 | $1,271,113,701 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $678,756,946 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2011-12-31 | $517,652,022 |
| Total income from all sources (including contributions) | 2011-12-31 | $43,156,510 |
| Total loss/gain on sale of assets | 2011-12-31 | $69,665,281 |
| Total of all expenses incurred | 2011-12-31 | $288,490 |
| 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 | $4,710,884,474 |
| Value of total assets at beginning of year | 2011-12-31 | $4,093,792,665 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2011-12-31 | $288,490 |
| Total interest from all sources | 2011-12-31 | $1,243,704 |
| Total dividends received (eg from common stock, registered investment company shares) | 2011-12-31 | $88,405,098 |
| Administrative expenses professional fees incurred | 2011-12-31 | $16,210 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2011-12-31 | $301,339,746 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2011-12-31 | $4,458,503 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2011-12-31 | $678,756,946 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2011-12-31 | $517,652,022 |
| Value of net income/loss | 2011-12-31 | $42,868,020 |
| Value of net assets at end of year (total assets less liabilities) | 2011-12-31 | $4,032,127,528 |
| Value of net assets at beginning of year (total assets less liabilities) | 2011-12-31 | $3,576,140,643 |
| Investment advisory and management fees | 2011-12-31 | $272,280 |
| Interest earned on other investments | 2011-12-31 | $1,233,966 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2011-12-31 | $386,172,763 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2011-12-31 | $521,016,717 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2011-12-31 | $521,016,717 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2011-12-31 | $9,738 |
| Income. Dividends from common stock | 2011-12-31 | $88,405,098 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2011-12-31 | $4,023,371,965 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2011-12-31 | $3,568,317,445 |
| Aggregate proceeds on sale of assets | 2011-12-31 | $995,742,453 |
| Aggregate carrying amount (costs) on sale of assets | 2011-12-31 | $926,077,172 |
| 2010 : MSCI US EQUITY INDEX FUND B 2010 401k financial data |
|---|
| Unrealized appreciation/depreciation of other (non real estate) assets | 2010-12-31 | $523,740,335 |
| Total unrealized appreciation/depreciation of assets | 2010-12-31 | $523,740,335 |
| Total transfer of assets to this plan | 2010-12-31 | $776,030,305 |
| Total transfer of assets from this plan | 2010-12-31 | $710,588,697 |
| Total liabilities at end of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $517,652,022 |
| Total liabilities at beginning of year (benefit claims payable, operating payabales, acquisition indebtedness and other liabilities) | 2010-12-31 | $454,214,393 |
| Total income from all sources (including contributions) | 2010-12-31 | $482,115,031 |
| Total loss/gain on sale of assets | 2010-12-31 | $-106,081,518 |
| Total of all expenses incurred | 2010-12-31 | $219,504 |
| 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 | $4,093,792,665 |
| Value of total assets at beginning of year | 2010-12-31 | $3,483,017,901 |
| Total of administrative expenses incurred including professional, contract, advisory and management fees | 2010-12-31 | $219,504 |
| Total interest from all sources | 2010-12-31 | $740,602 |
| Total dividends received (eg from common stock, registered investment company shares) | 2010-12-31 | $63,715,612 |
| Administrative expenses professional fees incurred | 2010-12-31 | $16,210 |
| Value of other receiveables (less allowance for doubtful accounts) at end of year | 2010-12-31 | $4,458,503 |
| Value of other receiveables (less allowance for doubtful accounts) at beginning of year | 2010-12-31 | $4,200,290 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at end of year | 2010-12-31 | $517,652,022 |
| Other liabilities (not benefit claims, operating payabales oe acquisition indebtedness) at beginning of year | 2010-12-31 | $454,214,393 |
| Value of net income/loss | 2010-12-31 | $481,895,527 |
| Value of net assets at end of year (total assets less liabilities) | 2010-12-31 | $3,576,140,643 |
| Value of net assets at beginning of year (total assets less liabilities) | 2010-12-31 | $3,028,803,508 |
| Investment advisory and management fees | 2010-12-31 | $203,294 |
| Interest earned on other investments | 2010-12-31 | $732,342 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at end of year | 2010-12-31 | $521,016,717 |
| Interest-bearing cash (include money market accounts & certificates of deposit) at beginning of the Year | 2010-12-31 | $456,372,004 |
| Value of interest bearing cash (including money market accounts and certificates of deposits) at beginning of year | 2010-12-31 | $456,372,004 |
| Interest earned from interest bearing cash (including money market accounts and certificates of deposit) | 2010-12-31 | $8,260 |
| Income. Dividends from common stock | 2010-12-31 | $63,715,612 |
| Assets. Corporate common stocks other than exployer securities at end of year | 2010-12-31 | $3,568,317,445 |
| Assets. Corporate common stocks other than exployer securities at beginning of year | 2010-12-31 | $3,022,445,607 |
| Aggregate proceeds on sale of assets | 2010-12-31 | $490,625,374 |
| Aggregate carrying amount (costs) on sale of assets | 2010-12-31 | $596,706,892 |
