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Condensed Financial Information (Parent Company) (Condensed Balance Sheet - Insets) (Details) - USD ($) $ / shares in Units, $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Condensed Balance Sheet Statements, Captions [Line Items] |  |
Amortized cost of fixed maturity securities | $ 306,025 | $ 310,884
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 | 1,189,831,471 | 1,186,540,473
Common stock, shares outstanding | 779,098,414 | 825,540,267
Treasury stock, shares | 410,733,057 | 361,000,206
Parent Company |  |
Condensed Balance Sheet Statements, Captions [Line Items] |  |
Amortized cost of fixed maturity securities | $ 3,877 | $ 2,742
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 | 1,189,831,471 | 1,186,540,473
Common stock, shares outstanding | 779,098,414 | 825,540,267
Treasury stock, shares | 410,733,057 | 361,000,206

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