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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, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Pre-tax |  |  |  |
Other comprehensive income (loss), before tax and net of reclassifications into Net income | $ 802 | $ 3,095 | $ 3,280 | $ 3,446
Tax effect |  |  |  |
Total other comprehensive income | (197) | (739) | (792) | (824)
After-tax |  |  |  |
Other comprehensive income (loss), after tax and net of reclassifications into Net income | 605 | 2,356 | 2,488 | 2,622
Debt securities |  |  |  |
Pre-tax |  |  |  |
Net unrealized gains (losses) | 495 | 1,397 | 1,325 | 786
Less: Net realized gains (losses) reclassified to earnings | (172) | (224) | (534) | (1,131)
Other comprehensive income (loss), before tax and net of reclassifications into Net income | 667 | 1,621 | 1,859 | 1,917
Tax effect |  |  |  |
Net unrealized gains (losses) | (120) | (336) | (322) | (189)
Less: Net realized gains (losses) reclassified to earnings | 42 | 53 | 130 | 271
Total other comprehensive income | (162) | (389) | (452) | (460)
After-tax |  |  |  |
Net unrealized gains (losses) | 375 | 1,061 | 1,003 | 597
Less: Net realized gains (losses) reclassified to earnings | (130) | (171) | (404) | (860)
Other comprehensive income (loss), after tax and net of reclassifications into Net income | 505 | 1,232 | 1,407 | 1,457
Cash flow hedge derivatives |  |  |  |
Pre-tax |  |  |  |
Net unrealized gains (losses) | (6) | 1,162 | 924 | 461
Less: Net realized gains (losses) reclassified to earnings | (142) | (313) | (522) | (1,072)
Other comprehensive income (loss), before tax and net of reclassifications into Net income | 136 | 1,475 | 1,446 | 1,533
Tax effect |  |  |  |
Net unrealized gains (losses) | 1 | (279) | (225) | (111)
Less: Net realized gains (losses) reclassified to earnings | 35 | 75 | 127 | 257
Total other comprehensive income | (34) | (354) | (352) | (368)
After-tax |  |  |  |
Net unrealized gains (losses) | (5) | 883 | 699 | 350
Less: Net realized gains (losses) reclassified to earnings | (107) | (238) | (395) | (815)
Other comprehensive income (loss), after tax and net of reclassifications into Net income | 102 | 1,121 | 1,094 | 1,165
Pension and other postretirement benefit plan adjustments |  |  |  |
Pre-tax |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | 1 | 0 | (20) | (1)
Other comprehensive income (loss), before tax and net of reclassifications into Net income | 1 | 0 | (20) | (1)
Tax effect |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | 0 | 0 | 5 | 0
Total other comprehensive income | 0 | 0 | 5 | 0
After-tax |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | 1 | 0 | (15) | (1)
Other comprehensive income (loss), after tax and net of reclassifications into Net income | 1 | 0 | (15) | (1)
Other |  |  |  |
Pre-tax |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | (2) | (1) | (5) | (3)
Other comprehensive income (loss), before tax and net of reclassifications into Net income | (2) | (1) | (5) | (3)
Tax effect |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | (1) | 4 | 7 | 4
Total other comprehensive income | (1) | 4 | 7 | 4
After-tax |  |  |  |
Less: Net realized gains (losses) reclassified to earnings | (3) | 3 | 2 | 1
Other comprehensive income (loss), after tax and net of reclassifications into Net income | $ (3) | $ 3 | $ 2 | $ 1

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