Equity, Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	$ 28,268	$ 26,947	$ 26,605	$ 27,521
Other comprehensive income (loss)	(211)	(151)	(409)	570
Balance as of end of period	31,084	26,746	31,084	26,746
Accumulated Other Comprehensive Loss [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(673)	(553)	(469)	(1,272)
Other comprehensive income (loss) before reclassifications	(159)	(161)	(422)	555
Amounts reclassified from accumulated other comprehensive loss	34	8	95	4
Effect of exchange rates	1	(2)	(1)	5
Other comprehensive income (loss)	(124)	(155)	(328)	564
Balance as of end of period	(797)	(708)	(797)	(708)
Foreign Currency Translation Adjustment [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(807)	(548)	(602)	(1,264)
Other comprehensive income (loss) before reclassifications	(55)	(155)	(260)	561
Amounts reclassified from accumulated other comprehensive loss	0	0	0	0
Effect of exchange rates	0	0	0	0
Other comprehensive income (loss)	(55)	(155)	(260)	561
Balance as of end of period	(862)	(703)	(862)	(703)
Defined Benefit Plans Items [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	125	1	130	(2)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from accumulated other comprehensive loss	(2)	(1)	(5)	(5)
Effect of exchange rates	1	(2)	(1)	5
Other comprehensive income (loss)	(1)	(3)	(6)	0
Balance as of end of period	124	(2)	124	(2)
Gains (Losses) on Cash Flow Hedges [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	9	(6)	3	(6)
Other comprehensive income (loss) before reclassifications	(104)	(6)	(162)	(6)
Amounts reclassified from accumulated other comprehensive loss	36	9	100	9
Effect of exchange rates	0	0	0	0
Other comprehensive income (loss)	(68)	3	(62)	3
Balance as of end of period	$ (59)	$ (3)	$ (59)	$ (3)