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Earnings Per Share and Common Stock - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Aug. 18, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Common stock outstanding (in shares)	414,000,000	428,000,000	414,000,000	428,000,000
Authorized repurchase amount					$ 1,500
Share repurchases (in shares)	3,000,000		10,000,000
Treasury stock acquired, average price per share (in usd per share)	$ 36.17
Repurchase of common stock	$ 100		$ 335	$ 225
Remaining authorized repurchase amount	$ 1,012		$ 1,012
Decrease in average shares outstanding (in shares)	14,000,000
Incremental common shares attributable to dilutive effect of accelerated share repurchase agreements (in shares)		16,000,000
Common stock, dividends per share, declared (in usd per share)	$ 0.06	$ 0.02	$ 0.10	$ 0.02
Common stock, dividends per share, paid (in usd per share)	$ 0.02	$ 0.02	$ 0.06	$ 0.02
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of anti-dilutive securities (in shares)	0	0	0	0
Revolving Credit Agreement
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Credit agreement term			5 years