Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		$ 112	$ 123	$ 150
Additions, charged (credited) to income		7	16	5
Additions, charged (credited) to AOCL		0	0	0
Deductions from reserves	[1]	(19)	(22)	(24)
Translation adjustment during period		2	(5)	(8)
Balance at end of period		102	112	123
Valuation allowance — deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		1,072	1,044	1,469
Additions, charged (credited) to income		202	35	(418)
Additions, charged (credited) to AOCL		1	(7)	(7)
Deductions from reserves	[1]	0	0	0
Translation adjustment during period			0	0
Balance at end of period		$ 1,275	$ 1,072	$ 1,044

[1] Accounts receivable charged off.