Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 2,009	$ 1,567	$ 1,570
Other comprehensive income (loss), net of tax
Unrealized loss on hedges, net of income tax benefit of $37, $19 and $5	(108)	(58)	(7)
Foreign currency translation adjustment	(82)	5	(291)
Other comprehensive loss, net of tax	(190)	(53)	(298)
Comprehensive income	$ 1,819	$ 1,514	$ 1,272