Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net income		$ 255	$ 370
Net changes in cash flow hedges, net of taxes	[1]	114	48
Total comprehensive income		$ 369	$ 418

[1] See “Note 4 – Derivative Financial Instruments.”