Equity, Changes in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax
Balance as of beginning of period	$ 28,524	$ 25,468	$ 19,817
Other comprehensive income (loss)	(447)	535	(354)
Balance as of end of period	27,521	28,524	25,468
Accumulated Other Comprehensive Loss [Member]
Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax
Balance as of beginning of period	(870)	(1,359)	(1,008)
Other comprehensive income (loss) before reclassifications	(345)	507	(533)
Amounts reclassified from accumulated other comprehensive  loss	(55)	(21)	182
Effect of exchange rates	(2)	3
Other comprehensive income (loss)	(402)	489	(351)
Balance as of end of period	(1,272)	(870)	(1,359)
Foreign Currency Translation Adjustment [Member]
Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax
Balance as of beginning of period	(735)	(1,168)	(562)
Other comprehensive income (loss) before reclassifications	(529)	433	(606)
Amounts reclassified from accumulated other comprehensive  loss	0	0	0
Effect of exchange rates	0	0
Other comprehensive income (loss)	(529)	433	(606)
Balance as of end of period	(1,264)	(735)	(1,168)
Defined Benefit Plans Items [Member]
Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax
Balance as of beginning of period	(162)	(183)	(441)
Other comprehensive income (loss) before reclassifications	172	42	187
Amounts reclassified from accumulated other comprehensive  loss	(10)	(24)	71
Effect of exchange rates	(2)	3
Other comprehensive income (loss)	160	21	258
Balance as of end of period	(2)	(162)	(183)
Gains (Losses) on Cash Flow Hedges [Member]
Changes in Accumulated Other Comprehensive Loss by Component, Net of Tax
Balance as of beginning of period	27	(8)	(5)
Other comprehensive income (loss) before reclassifications	12	32	(114)
Amounts reclassified from accumulated other comprehensive  loss	(45)	3	111
Effect of exchange rates	0	0
Other comprehensive income (loss)	(33)	35	(3)
Balance as of end of period	$ (6)	$ 27	$ (8)