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Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income, Net of Tax (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Deferred Taxes |  |
Balance | $ (95) | $ (39)
Changes in value | (3) | (3)
Amounts reclassified to earnings | 0 | (1)
Balance | (98) | (43)
Total |  |
Balance | 5,029 | 5,960
Changes in value | 5 | 9
Amounts reclassified to earnings | 0 | 4
Balance | 3,624 | 5,206
Accumulated Other Comprehensive Income (Loss) |  |
Total |  |
Balance | (942) | (1,139)
Balance | (937) | (1,126)
Deferred income tax expense | 285 |
Pension and Other Postretirement Liabilities |  |
Before Tax |  |
Balance | (847) | (1,102)
Changes in value | 8 | 13
Amounts reclassified to earnings | 0 | 5
Balance | (839) | (1,084)
Investments and Other |  |
Before Tax |  |
Balance | 0 | 2
Changes in value | 0 | (1)
Amounts reclassified to earnings | 0 | 0
Balance | $ 0 | $ 1

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