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Equity (Equity Units) (Details) $ / shares in Units, $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 USD ($) $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares | Mar. 31, 2021 USD ($) | Mar. 04, 2021 $ / shares
Equity [Abstract] |  |  |  |
Equity Unit, Shares Issued | shares | 10,430,500 |  |  |
Corporate Equity Unit, Stated Value Per Share | $ / shares | $ 100 |  |  |
Preferred Stock, Beneficial Ownership Interest in One Share | 0.10 |  |  |
Preferred Stock, Dividend Rate, Percentage | 0.00% |  |  |
Preferred Stock, Liquidation Preference Per Share | $ / shares | $ 1,000 |  |  |
Proceeds from Equity Units, net of underwriting costs and commissions, before offering expenses | $ 1,000 |  |  |
Preferred Stock, Shares Issued | shares | 1,043,050 |  |  |
Preferred stock (without par value, 50,000,000 shares authorized; 1,043,050 issued and outstanding at December 31, 2022 and December 31, 2021) | $ 838 | $ 838 |  |
Forward Contract Indexed to Issuer's Equity, Forward Rate Per Share | $ / shares | $ 100 | $ 100 |  |
Forward Contract Indexed to Issuer's Equity, Shares | shares | 57,292,650 |  |  |
Forward Contract Indexed to Issuer's Equity, Settlement Rate | shares | 3.8691 | 3.864 |  |
Shares Issued, Price Per Share | $ / shares | $ 25.85 |  |  | $ 25.88
Forward Contract Indexed to Issuer's Equity, Interest Rate | 0.06875 |  |  |
Forward Contract Indexed to Issuer's Equity, Present Value of Interest Payments | $ 89 |  | $ 205 |
Accretion Expense | $ 5 |  |  |
Preferred Shares Deliverable Upon Early Settlement of Purchase Contracts | 0.85 |  |  |
Corporate Unit, Notional Value | $ 1,043 |  |  |

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