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Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Additional Information [Line Items] |  |  |
Pre-tax earnings from foreign operations | $ 230 | $ 462 | $ 677
Other comprehensive income (loss), provision (benefit) | 455 | (3,184) | (985)
Increase in valuation allowance | 50 |  |
Valuation allowance | 496 | 446 |
Accrued interest and penalties expense (benefit) related to income taxes included in income tax expense | 1 | (1) | $ (30)
Unremitted earnings | 1,800 |  |
Amount of unrecognized deferred tax liability, bad debt reserve for tax purposes of qualified lender | 70 |  |
Bad debt reserve for tax purposes of qualified lender | 287 |  |
Foreign Tax Credit Carryforward |  |  |
Additional Information [Line Items] |  |  |
Increase in valuation allowance | 41 |  |
Net Operating State Losses And Interest Carryforwards |  |  |
Additional Information [Line Items] |  |  |
Increase in valuation allowance | 8 |  |
Internal Revenue Service (IRS) |  |  |
Additional Information [Line Items] |  |  |
Operating loss carryforwards | 7 | 13 |
Operating loss carryforwards, no expiration | 7 |  |
State and Local Jurisdiction |  |  |
Additional Information [Line Items] |  |  |
Operating loss carryforwards | 273 | 267 |
Foreign Tax Authority |  |  |
Additional Information [Line Items] |  |  |
Operating loss carryforwards | $ 207 | $ 166 |

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