Income Taxes - Deferred Taxes (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Assets
Provisions	$ 41	$ 43
Intangibles assets	4	7
Tax receivables, principally net operating loss carryforward	342	262
Credits	14	14
Lease liabilities	26	29
Other	12	6
Deferred tax assets before allowances	439	361
Valuation allowances	(408)	(323)
Total	31	38
Liabilities
Property, plant and equipment	(7)	(5)
Distribution taxes	(3)	(2)
Convertible Senior Notes	(6)	(8)
Operating lease right-of-use assets	(25)	(29)
Total	(41)	(44)
Net deferred tax liability	$ (10)	$ (6)