Equity, Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	$ 27,521	$ 28,524
Other comprehensive income (loss)	165	(228)
Balance as of end of period	26,315	28,824
Accumulated Other Comprehensive Loss [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(1,272)	(870)
Other comprehensive income (loss) before reclassifications	161	(171)
Amounts reclassified from accumulated other comprehensive loss	0	(13)
Effect of exchange rates	2	(1)
Other comprehensive income (loss)	163	(185)
Balance as of end of period	(1,109)	(1,055)
Foreign Currency Translation Adjustment [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(1,264)	(735)
Other comprehensive income (loss) before reclassifications	162	(148)
Amounts reclassified from accumulated other comprehensive loss	0	0
Effect of exchange rates	0	0
Other comprehensive income (loss)	162	(148)
Balance as of end of period	(1,102)	(883)
Defined Benefit Plans Items [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(2)	(162)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive loss	(2)	(4)
Effect of exchange rates	2	(1)
Other comprehensive income (loss)	0	(5)
Balance as of end of period	(2)	(167)
Gains (Losses) on Cash Flow Hedges [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(6)	27
Other comprehensive income (loss) before reclassifications	(1)	(23)
Amounts reclassified from accumulated other comprehensive loss	2	(9)
Effect of exchange rates	0	0
Other comprehensive income (loss)	1	(32)
Balance as of end of period	$ (5)	$ (5)