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Total Equity and Other Comprehensive Income (Other Comprehensive Income) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Pre-tax |  |  |  |
Other comprehensive income (loss), before tax and net of reclassifications into Net income | $ 3,095 | $ (965) | $ 3,446 | $ (123)
Tax effect |  |  |  |
Total other comprehensive income (loss) | (739) | 229 | (824) | 34
After-tax |  |  |  |
Other comprehensive income (loss), after tax and net of reclassifications into Net income | 2,356 | (736) | 2,622 | (89)
Debt securities |  |  |  |
Pre-tax |  |  |  |
Net unrealized gains (losses) | 1,397 | (1,171) | 786 | (993)
Less: Net realized gains (losses) reclassified to earnings | (224) | (239) | (1,131) | (689)
Other comprehensive income (loss), before tax and net of reclassifications into Net income | 1,621 | (932) | 1,917 | (304)
Tax effect |  |  |  |
Net unrealized gains (losses) | (336) | 280 | (189) | 238
Less: Net realized gains (losses) reclassified to earnings | 53 | 57 | 271 | 163
Total other comprehensive income (loss) | (389) | 223 | (460) | 75
After-tax |  |  |  |
Net unrealized gains (losses) | 1,061 | (891) | 597 | (755)
Less: Net realized gains (losses) reclassified to earnings | (171) | (182) | (860) | (526)
Other comprehensive income (loss), after tax and net of reclassifications into Net income | 1,232 | (709) | 1,457 | (229)
Cash flow hedge derivatives |  |  |  |
Pre-tax |  |  |  |
Net unrealized gains (losses) | 1,162 | (461) | 461 | (953)
Less: Net realized gains (losses) reclassified to earnings | (313) | (426) | (1,072) | (1,129)
Other comprehensive income (loss), before tax and net of reclassifications into Net income | 1,475 | (35) | 1,533 | 176
Tax effect |  |  |  |
Net unrealized gains (losses) | (279) | 122 | (111) | 238
Less: Net realized gains (losses) reclassified to earnings | 75 | 112 | 257 | 278
Total other comprehensive income (loss) | (354) | 10 | (368) | (40)
After-tax |  |  |  |
Net unrealized gains (losses) | 883 | (339) | 350 | (715)
Less: Net realized gains (losses) reclassified to earnings | (238) | (314) | (815) | (851)
Other comprehensive income (loss), after tax and net of reclassifications into Net income | 1,121 | (25) | 1,165 | 136
Pension and other postretirement benefit plan adjustments |  |  |  |
Pre-tax |  |  |  |
Less: Net realized gains (losses) reclassified to earnings |  | 1 | (1) | (3)
Other comprehensive income (loss), before tax and net of reclassifications into Net income |  | 1 | (1) | (3)
Tax effect |  |  |  |
Less: Net realized gains (losses) reclassified to earnings |  | (1) |  |
Total other comprehensive income (loss) |  | (1) |  |
After-tax |  |  |  |
Less: Net realized gains (losses) reclassified to earnings |  |  | (1) | (3)
Other comprehensive income (loss), after tax and net of reclassifications into Net income |  |  | (1) | (3)
Other |  |  |  |
Pre-tax |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | (1) | 1 | (3) | 8
Other comprehensive income (loss), before tax and net of reclassifications into Net income | (1) | 1 | (3) | 8
Tax effect |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | 4 | (3) | 4 | (1)
Total other comprehensive income (loss) | 4 | (3) | 4 | (1)
After-tax |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | 3 | (2) | 1 | 7
Other comprehensive income (loss), after tax and net of reclassifications into Net income | $ 3 | $ (2) | $ 1 | $ 7

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