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Schedule II - Condensed Financial Information - Notes to Financial Statements (Parent Company) (Details) $ / shares in Units, $ in Millions |  |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jan. 16, 2024 USD ($) | Jan. 12, 2024 USD ($) $ / shares shares | Dec. 31, 2023 USD ($) $ / shares | Dec. 31, 2022 USD ($) $ / shares | Dec. 31, 2021 USD ($) | Feb. 16, 2024 USD ($) | Sep. 17, 2021 | May 16, 2019 | Aug. 13, 2018
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  | $ 3,887 | $ 3,238 |  |  |  |  |
Interest |  |  | 157 | 125 | $ 112 |  |  |  |
Income taxes |  |  | $ 216 | $ 387 | 653 |  |  |  |
Preferred stock, par or stated value per share (in dollars per share) | $ / shares |  |  | $ 0.0001 | $ 0.0001 |  |  |  |  |
6.875% Series A Mandatory Convertible Preferred Stock | Subsequent Event | F&G |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Preferred stock investment | $ 250 | $ 250 |  |  |  |  |  |  |
Preferred stock investment, shares issued in transaction (in shares) | shares |  | 5,000,000 |  |  |  |  |  |  |
Preferred stock, dividend rate, percentage |  | 6.875% |  |  |  |  |  |  |
Preferred stock, par or stated value per share (in dollars per share) | $ / shares |  | $ 0.001 |  |  |  |  |  |  |
Preferred stock, liquidation preference (in usd per share) | $ / shares |  | $ 50.00 |  |  |  |  |  |  |
6.875% Series A Mandatory Convertible Preferred Stock | Subsequent Event | F&G | Maximum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Preferred stock, convertible, conversion ratio |  | 1.1111 |  |  |  |  |  |  |
6.875% Series A Mandatory Convertible Preferred Stock | Subsequent Event | F&G | Minimum |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Preferred stock, convertible, conversion ratio |  | 0.9456 |  |  |  |  |  |  |
4.50% Notes, net of discount |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  |  | 4.50% | 4.50%
3.20% Notes, net of discount |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  |  |  |  |  | 3.20% |  |
Revolving Credit Facility | Revolving Credit Facility | Line of Credit |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  | $ 2 | $ 3 |  |  |  |  |
Revolving Credit Facility | Revolving Credit Facility | Line of Credit | Subsequent Event |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Line of credit facility |  |  |  |  |  | $ 800 |  |  |
Parent Company |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  | 2,126 | 2,123 |  |  |  |  |
Interest |  |  | 73 | 95 | 81 |  |  |  |
Income taxes |  |  | 213 | 459 | 609 |  |  |  |
Cash dividends from subsidiaries and affiliates |  |  | $ 400 | $ 800 | $ 600 |  |  |  |
Preferred stock, par or stated value per share (in dollars per share) | $ / shares |  |  | $ 0.0001 | $ 0.0001 |  |  |  |  |
Parent Company | 4.50% Notes, net of discount |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  | 4.50% |  |  |  |  |  |
Notes payable |  |  | $ 446 | $ 445 |  |  |  |  |
Parent Company | 3.40% Notes, net of discount |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  | 3.40% |  |  |  |  |  |
Notes payable |  |  | $ 644 | 644 |  |  |  |  |
Parent Company | 2.45% Notes, net of discount |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  | 2.45% |  |  |  |  |  |
Notes payable |  |  | $ 594 | 594 |  |  |  |  |
Parent Company | 3.20% Notes, net of discount |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, interest rate, stated percentage |  |  | 3.20% |  |  |  |  |  |
Notes payable |  |  | $ 444 | 443 |  |  |  |  |
Parent Company | Revolving Credit Facility | Revolving Credit Facility |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |
Notes payable |  |  | $ (2) | $ (3) |  |  |  |  |

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