Schedule II Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Allowance for doubtful accounts
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		$ 123	$ 150	$ 126	[1]
Additions, charged (credited) to income		16	5	30
Additions, charged (credited) to AOCL		0	0	0
Deductions from reserves	[2]	(22)	(24)	(11)
Translation adjustment during period		(5)	(8)	5
Balance at end of period		112	123	150
Valuation allowance — deferred tax assets
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period		1,044	1,469	982
Additions, charged (credited) to income		35	(418)	488
Additions, charged (credited) to AOCL		(7)	(7)	(1)
Deductions from reserves	[2]	0	0	0
Translation adjustment during period		0	0	0
Balance at end of period		$ 1,072	$ 1,044	$ 1,469

[1] Effective January 1, 2020, we adopted, using the modified retrospective adoption approach, an accounting standards update with new guidance relating to credit losses on financial instruments. Our adoption of this standards update resulted in a cumulative effect adjustment to decrease Retained Earnings by $12 million, with Accounts Receivables decreasing by $15 million and Deferred Income Taxes increasing by $3 million.

[2] Accounts receivable charged off.