Common Stock Issued and Repurchased - Additional Information (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Feb. 28, 2021	Jun. 30, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Oct. 28, 2021	Nov. 30, 2018
Subsidiary, Sale of Stock [Line Items]
Stock repurchase program, authorized amount						$ 300	$ 300
Common stock repurchased (in shares)			6,556,855		5,289,475
Value of shares repurchased			$ 150		$ 88
Net proceeds from public offering of common stock (Note 27)			$ 790	$ 410	$ 0
Public Offering
Subsidiary, Sale of Stock [Line Items]
Number of shares issued (in shares)	48,300,000	50,000,000
Net proceeds from public offering of common stock (Note 27)	$ 790	$ 410