Accumulated Other Comprehensive Loss - Changes in AOCL, After Tax and Minority Interest (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 5,184	$ 3,259
Ending balance	5,250	4,506
Foreign Currency Translation Adjustment
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(1,402)	(1,284)
Other comprehensive income (loss) before reclassifications	(334)	(72)
Amounts reclassified from accumulated other comprehensive loss	0	0
Ending balance	(1,736)	(1,356)
Unrealized Gains (Losses) from Securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance		0
Other comprehensive income (loss) before reclassifications		1
Amounts reclassified from accumulated other comprehensive loss		0
Ending balance		1
Unrecognized Net Actuarial Losses and Prior Service Costs
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(2,565)	(2,856)
Other comprehensive income (loss) before reclassifications	10	22
Amounts reclassified from accumulated other comprehensive loss	93	102
Ending balance	(2,462)	(2,732)
Deferred Derivative Gains (Losses)
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	4	5
Other comprehensive income (loss) before reclassifications	3	2
Amounts reclassified from accumulated other comprehensive loss	(1)	(2)
Ending balance	6	5
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(3,963)	(4,135)
Other comprehensive income (loss) before reclassifications	(321)	(47)
Amounts reclassified from accumulated other comprehensive loss	92	100
Ending balance	$ (4,192)	$ (4,082)