Earnings per Share - Schedule of EPS (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Income (Numerator)
Net income	$ 220	$ 352	$ 209	$ 677	$ 572	$ 886
Less: dividends attributable to participating securities	(1)		(1)		(1)	(3)
Net income available to common stockholders	$ 219		$ 208		$ 571	$ 883
Shares (Denominator)
Weighted-average shares - basic (in shares)	742		755		746	760
Dilution effect of stock awards at end of period (in shares)	6		5		6	4
Weighted-average shares - diluted (in shares)	748		760		752	764
Earnings per share
Basic (in dollars per share)	$ 0.30		$ 0.28		$ 0.77	$ 1.16
Diluted (in dollars per share)	$ 0.29		$ 0.27		$ 0.76	$ 1.16