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Employee Benefit Plans (Schedule of Pension Amounts Recognized in Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items] |  |  |
Net actuarial loss (gain) arising during the period | $ 971 | $ (1,291) | $ (3,246)
Current year prior service cost | 19 | 131 | 59
Amortization of prior service credit | 568 | (129) | $ (258)
Pension Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Net actuarial loss (gain) arising during the period | 935 | (1,082) |
Amortization of actuarial gain | 378 | (305) |
Current year prior service cost | 19 | 131 |
Amortization of prior service credit | 158 | 163 |
Net settlement and curtailment | (3) | 1 |
Other | 52 | (69) |
Total recognized in other comprehensive income (loss) | 1,539 | (1,161) |
Net recognized in net periodic expense (income) and other comprehensive loss | $ (15) | $ (2,571) |

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