Equity, Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	$ 28,250	$ 27,994	$ 28,524	$ 25,468
Other comprehensive income (loss)	364	(393)	15	0
Balance as of end of period	28,000	28,057	28,000	28,057
Accumulated Other Comprehensive Loss [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(1,172)	(971)	(870)	(1,359)
Other comprehensive income (loss) before reclassifications	359	(392)	86	51
Amounts reclassified from accumulated other comprehensive loss	(21)	40	(49)	(18)
Effect of exchange rates	4	(2)	3	1
Other comprehensive income (loss)	342	(354)	40	34
Balance as of end of period	(830)	(1,325)	(830)	(1,325)
Foreign Currency Translation Adjustment [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(993)	(774)	(735)	(1,168)
Other comprehensive income (loss) before reclassifications	326	(315)	68	79
Amounts reclassified from accumulated other comprehensive loss	0	0	0	0
Effect of exchange rates	0	0	0	0
Other comprehensive income (loss)	326	(315)	68	79
Balance as of end of period	(667)	(1,089)	(667)	(1,089)
Defined Benefit Plans Items [Member]
Changes in Accumulated Other Comprehensive Loss, By Component, Net of Tax
Balance as of beginning of period	(170)	(193)	(162)	(183)
Other comprehensive income (loss) before reclassifications	0	0	0	0
Amounts reclassified from accumulated other comprehensive loss	(5)	(7)	(12)	(20)
Effect of exchange rates	4	(2)	3	1
Other comprehensive income (loss)	(1)	(9)	(9)	(19)
Balance as of end of period	(171)	(202)	(171)	(202)
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)	(4)	27	(8)
Other comprehensive income (loss) before reclassifications	33	(77)	18	(28)
Amounts reclassified from accumulated other comprehensive loss	(16)	47	(37)	2
Effect of exchange rates	0	0	0	0
Other comprehensive income (loss)	17	(30)	(19)	(26)
Balance as of end of period	$ 8	$ (34)	$ 8	$ (34)