Stockholders' Equity Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020		Dec. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 25,063	$ 24,555		$ 75,153
Net other comprehensive income (loss)	(8)	380		(1,124)
Ending Balance	25,623	25,063		24,555
Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,970)	(1,944)		(2,793)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(573)	(26)	[1]	(274)	[1]
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax	0	0		0
Net other comprehensive income (loss)	(573)	(26)		(274)
Ending Balance	(2,543)	(1,970)		(1,944)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(67)	2		(26)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	143	(81)		16
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax	(4)	12		12
Net other comprehensive income (loss)	139	(69)		28
Ending Balance	72	(67)		2
Unrealized gain (loss) on investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(10)	0		0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	3	(10)		0
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax	7	0		0
Net other comprehensive income (loss)	10	(10)		0
Ending Balance	0	(10)		0
Accumulated Other Comp Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(2,890)	(3,270)		(3,360)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	594	362		(1,140)
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax	(602)	18		16
Net other comprehensive income (loss)	(8)	380		(1,124)
Ending Balance	(2,898)	(2,890)		(3,270)
Internal Reorganization [Member] | Cumulative Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income, Other, Net of Tax				1,123
Internal Reorganization [Member] | Derivative Instruments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income, Other, Net of Tax				0
Internal Reorganization [Member] | Unrealized gain (loss) on investments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income, Other, Net of Tax				0
Internal Reorganization [Member] | Accumulated Other Comp Loss
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income, Other, Net of Tax				1,214
Pension Plan
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,433)	(1,247)		(620)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	996	(191)		(723)
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax	41	5		5
Net other comprehensive income (loss)	1,037	(186)		(718)
Ending Balance	(396)	(1,433)		(1,247)
Pension Plan | Internal Reorganization [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income, Other, Net of Tax				91
Other Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	590	(81)		79
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	25	670		(159)
Amounts Reclassified from Accumulated Other Comprehensive Income, Net of Tax	(646)	1		(1)
Net other comprehensive income (loss)	(621)	671		(160)
Ending Balance	$ (31)	$ 590		(81)
Other Benefit Plans | Internal Reorganization [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Income, Other, Net of Tax				$ 0

[1] 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”). The cumulative translation adjustment losses for the year ended December 31, 2020 was primarily driven by the strengthening of the U.S. Dollar ("USD") against the Brazilian Real ("BRL"), partially offset by the weakening of the U.S. Dollar against the Swiss franc ("CHF") and European Euro ("EUR").