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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, 2019
Capital Unit [Line Items]
Issuance costs		$ 28
Corporate units stock purchase contract liability payments	$ 44
Series A Preferred Stock
Capital Unit [Line Items]
Recorded interest expense	7
Preferred Stock
Capital Unit [Line Items]
Issuance costs		14
Recorded dividend	$ 12
Dividends per share	$ 7.292
Common Stock
Capital Unit [Line Items]
Issuance costs		$ 14

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