Stockholders' Equity Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		$ 25,541	$ 25,623	$ 25,063
Net other comprehensive income (loss)		129	92	(8)
Ending Balance		25,279	25,541	25,623
Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(2,883)	(2,543)	(1,970)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	[1]	425	(340)	(573)
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax		0	0	0
Net other comprehensive income (loss)		425	(340)	(573)
Ending Balance		(2,458)	(2,883)	(2,543)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		80	72	(67)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		(123)	63	143
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax		(12)	(55)	(4)
Net other comprehensive income (loss)		(135)	8	139
Ending Balance		(55)	80	72
Unrealized gain (loss) on investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		0	0	(10)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		0	0	3
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax		0	0	7
Net other comprehensive income (loss)		0	0	10
Ending Balance		0	0	0
Accumulated Other Comp Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(2,806)	(2,898)	(2,890)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		152	126	594
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax		(23)	(34)	(602)
Net other comprehensive income (loss)		129	92	(8)
Ending Balance		(2,677)	(2,806)	(2,898)
Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		(163)	(396)	(1,433)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		(188)	213	996
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax		(2)	20	41
Net other comprehensive income (loss)		(190)	233	1,037
Ending Balance		(353)	(163)	(396)
Other Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance		160	(31)	590
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax		38	190	25
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax		(9)	1	(646)
Net other comprehensive income (loss)		29	191	(621)
Ending Balance		$ 189	$ 160	$ (31)

[1] The cumulative translation adjustment losses for the year ended December 31, 2022 was primarily driven by the strengthening of the U.S. Dollar (“USD”) against the European Euro ("EUR"), Indian Rupee (“INR”), South African Rand (“ZAR”) and Philippine Peso (“PHP”). The cumulative translation adjustment losses for the year ended December 31, 2021 was primarily driven by the strengthening of the U.S. Dollar ("USD") against the European Euro ("EUR"), Swiss franc ("CHF") and Turkish Lira (“TRY”).