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Preferred Stock (Schedule of Equity Units) (Parenthetical) (Detail) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Capital Unit [Line Items] |  |  |  |
Issuance costs |  |  |  | $ 28
Corporate units stock purchase contract liability payments | $ 44 | $ 85 | $ 83 |
Stock Purchase Contract Liability |  | 44 |  |
Series A Preferred Stock |  |  |  |
Capital Unit [Line Items] |  |  |  |
Interest expense | 7 |  |  |
Preferred Stock |  |  |  |
Capital Unit [Line Items] |  |  |  |
Issuance costs |  |  |  | 14
Recorded dividend | $ 12 | $ 28 | $ 28 |
Dividends per share | $ 7.292 | $ 17.50 | $ 17.50 |
Common Stock |  |  |  |
Capital Unit [Line Items] |  |  |  |
Issuance costs |  |  |  | $ 14

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