Shareholders' Equity - Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Changes in Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	$ 15,010	$ 13,794
Balance at end of period	15,201	15,004
Accumulated Other Comprehensive Income (Loss)
Changes in Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(1,373)	(1,273)
Balance at end of period	(1,323)	(1,034)
Unrealized gain (loss) on hedges
Changes in Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(21)	(77)
Other comprehensive income (loss), net of tax	(52)	95
Balance at end of period	(73)	19
Defined benefit plans
Changes in Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	1	1
Other comprehensive income (loss), net of tax	0	0
Balance at end of period	1	0
Foreign currency translation adjustment
Changes in Accumulated Other Comprehensive Income [Roll Forward]
Balance at beginning of period	(1,352)	(1,197)
Other comprehensive income (loss), net of tax	102	144
Balance at end of period	$ (1,251)	$ (1,053)