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Derivative Instruments (Change In Our Unrealized Gain On Derivative Instruments In Accumulated OCI) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Change in our unrealized gain on derivative instruments in accumulated OCI |  |  |  |
Balance as of beginning-of-year |  |  | $ (6,352) |
Income tax benefit (expense) | $ (91) | $ (192) | 198 | $ (545)
Balance as of end-of-period | (5,104) |  | (5,104) |
Unrealized Gain (Loss) on Derivative Instruments [Member] |  |  |  |
Change in our unrealized gain on derivative instruments in accumulated OCI |  |  |  |
Balance as of beginning-of-year |  |  | 388 | (85)
Change in foreign currency exchange rate adjustment |  |  | (110) | 373
Income tax benefit (expense) |  |  | (26) | (104)
Income tax benefit (expense) |  |  | (9) | (5)
Balance as of end-of-period | $ 448 | $ 290 | 448 | 290
Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Interest Rate Contracts [Member] |  |  |  |
Change in our unrealized gain on derivative instruments in accumulated OCI |  |  |  |
Unrealized holding gains (losses) arising during the period |  |  | 150 | 107
Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Interest Rate Contracts [Member] | Net Investment Income [Member] |  |  |  |
Change in our unrealized gain on derivative instruments in accumulated OCI |  |  |  |
Reclassification adjustment for gains (losses) included in net income (loss) |  |  |  | 1
Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Interest Rate Contracts [Member] | Interest and Debt Expense [Member] |  |  |  |
Change in our unrealized gain on derivative instruments in accumulated OCI |  |  |  |
Reclassification adjustment for gains (losses) included in net income (loss) |  |  | 13 | (10)
Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Foreign Currency Contracts [Member] |  |  |  |
Change in our unrealized gain on derivative instruments in accumulated OCI |  |  |  |
Unrealized holding gains (losses) arising during the period |  |  | 80 | 19
Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Foreign Currency Contracts [Member] | Net Investment Income [Member] |  |  |  |
Change in our unrealized gain on derivative instruments in accumulated OCI |  |  |  |
Reclassification adjustment for gains (losses) included in net income (loss) |  |  | 27 | 30
Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Foreign Currency Contracts [Member] | Realized Gain (Loss) [Member] |  |  |  |
Change in our unrealized gain on derivative instruments in accumulated OCI |  |  |  |
Reclassification adjustment for gains (losses) included in net income (loss) |  |  | $ 3 | $ 4

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- Definition Pre tax reclassification adjustment for accumulated gains and losses from derivative instrument designated and qualifying as the effective portion of cash flow hedges, fair value hedges, or a hedge of a net investment in a foreign subsidiary, included in accumulated comprehensive income that was realized in net income during the period. + References No definition available. + Details
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