Stockholders' Equity and EPS - Reconciliation of Basic EPS to Diluted EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Net income available to common stockholders	$ 472	$ 532
Denominator:
Weighted average common shares outstanding-basic (in shares)	58,800	52,180
Weighted average common shares outstanding—diluted (in shares)	59,599	53,076
Earnings per common share:
Basic (dollars per share)	$ 8.03	$ 10.20
Diluted (dollars per share)	$ 7.92	$ 10.03
Stock options and ESPP
Denominator:
Weighted average effect of dilutive securities (in shares)	261	294
Restricted stock units and awards
Denominator:
Weighted average effect of dilutive securities (in shares)	538	602