Accumulated Other Comprehensive Loss - Schedule of Components of Accumulated Other Comprehensive Loss in the Equity Section of the Balance Sheet (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			$ (6,000)
Other comprehensive income (loss)	$ (36)	$ (552)	39	$ (915)
Ending balance	(5,961)		(5,961)
Defined Benefit Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(448)
Other comprehensive income (loss)			26
Ending balance	(422)		(422)
Unrealized Holding Loss on Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(11)
Other comprehensive income (loss)			0
Ending balance	(11)		(11)
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			(5,541)
Other comprehensive income (loss)			(23)
Ending balance	(5,564)		(5,564)
Unrealized Gain on Hedging Activities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance			0
Other comprehensive income (loss)			36
Ending balance	$ 36		$ 36