Earnings per Share - Schedule of EPS (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Sep. 30, 2024	Sep. 30, 2023
Income (Numerator)
Net income	$ 252	$ 220	$ 352	$ 323	$ 209	$ 677	$ 824	$ 1,209
Less: dividends attributable to participating securities	(1)			(1)			(2)	(4)
Net income available to common stockholders	$ 251			$ 322			$ 822	$ 1,205
Shares (Denominator)
Weighted-average shares - basic (in shares)	738			753			743	757
Dilution effect of stock awards at end of period (in shares)	6			5			6	5
Weighted-average shares - diluted (in shares)	744			758			749	762
Earnings per share
Basic (in dollars per share)	$ 0.34			$ 0.43			$ 1.11	$ 1.59
Diluted (in dollars per share)	$ 0.34			$ 0.42			$ 1.10	$ 1.58