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Accumulated Other Comprehensive Income (Loss) (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Components of AOCI | The tables below present the components of the Company's AOCI, net of tax (in millions):
|  | Pension and Other Postretirement Liabilities |  | Investments and Other |  | Deferred Taxes (a) |  | Total
Balance at December 31, 2018 |  | $ | (663) |  |  | $ | (4) |  |  | $ | (136) |  |  | $ | (803) |
Change in value |  | 105 |  |  | 7 |  |  | (24) |  |  | 88 |
Amounts reclassified to earnings |  | (2) |  | (b) | (1) |  |  | — |  |  | (3) |
Balance at December 31, 2019 |  | (560) |  |  | 2 |  |  | (160) |  |  | (718) |
Change in value |  | (993) |  |  | — |  |  | 221 |  |  | (772) |
Amounts reclassified to earnings |  | 451 |  | (b) | — |  |  | (100) |  |  | 351 |
Balance at December 31, 2020 |  | (1,102) |  |  | 2 |  |  | (39) |  |  | (1,139) |
Change in value |  | 239 |  |  | (2) |  |  | (53) |  |  | 184 |
Amounts reclassified to earnings |  | 16 |  | (b) | — |  |  | (3) |  |  | 13 |
Balance at December 31, 2021 |  | $ | (847) |  |  | $ | — |  |  | $ | (95) |  |  | $ | (942) |
(a)Relates primarily to pension and other postretirement benefit liabilities and includes approximately $285 million of deferred income tax expense that will not be recognized in net income until these obligations are fully extinguished. We consider all income sources, including other comprehensive income, in determining the amount of tax benefit allocated to results from operations. (b)This AOCI component is included in the computation of net periodic pension and other postretirement costs. See Note 7 of this report for additional information on pensions and other postretirement liabilities.

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