Shareholders' Deficit (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Repurchase Of Shares Of Common Stock [Line Items]
Repurchase of shares of Common Stock, value	$ 50	$ 407
Stock Repurchase Program, Remaining Authorized Repurchase Amount	1,700
Number of shares repurchased with trade dates during the current reporting date but with settlement dates subsequent to the current reporting date		500,000
Value of share repurchases with trade dates during the current reporting date but with settlement dates subsequent to the current reporting date		$ 64
May 2021
Repurchase Of Shares Of Common Stock [Line Items]
Repurchase of shares of Common Stock, value		407
Stock Repurchase Program, Remaining Authorized Repurchase Amount	0
September 2022
Repurchase Of Shares Of Common Stock [Line Items]
Repurchase of shares of Common Stock, value	50	$ 0
Stock Repurchase Program, Authorized Amount	2,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 1,700
Issued Common Stock
Repurchase Of Shares Of Common Stock [Line Items]
Shares Repurchased	387,000	3,359,000
Repurchase of shares of Common Stock, value	$ 24	$ 22
Issued Common Stock | May 2021
Repurchase Of Shares Of Common Stock [Line Items]
Shares Repurchased	0	3,359,000
Issued Common Stock | September 2022
Repurchase Of Shares Of Common Stock [Line Items]
Shares Repurchased	387,000	0