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Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Statement of Comprehensive Income [Abstract] |  |  |
Net other comprehensive income (loss) recognized during the period, net of tax | $ 925 | $ 292 | $ 586
Amounts reclassified from accumulated other comprehensive loss, net of tax expense | 130 | $ 119 | $ 247
Pension settlement charge, net of tax expense | $ 355 |  |

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