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Condensed Financial Information (Parent Company) (Condensed Balance Sheet - Insets) (Details) - USD ($) $ / shares in Units, $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Condensed Balance Sheet Statements, Captions [Line Items] |  |
Amortized cost of fixed maturity securities | $ 307,421 | $ 300,555
Preferred stock, par value | $ 0.01 | $ 0.01
Preferred Stock, Liquidation Preference, Value | $ 3,905 | $ 3,905
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares authorized | 3,000,000,000 | 3,000,000,000
Common stock, shares issued | 1,194,168,628 | 1,191,823,651
Common stock, shares outstanding | 689,211,065 | 730,821,111
Treasury stock, shares | 504,957,563 | 461,002,540
Parent Company |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |
Amortized cost of fixed maturity securities | $ 1,827 | $ 1,689
Preferred stock, par value | $ 0.01 | $ 0.01
Preferred Stock, Liquidation Preference, Value | $ 3,905 | $ 3,905
Common stock, par value | $ 0.01 | $ 0.01
Common stock, shares authorized | 3,000,000,000 | 3,000,000,000
Common stock, shares issued | 1,194,168,628 | 1,191,823,651
Common stock, shares outstanding | 689,211,065 | 730,821,111
Treasury stock, shares | 504,957,563 | 461,002,540

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