Income Taxes (Schedule of Consolidated Deferred Tax Assets and Liabilities) (Details) - USD ($) $ in Millions		Dec. 31, 2020	Dec. 31, 2019
Deferred Tax Assets
Pension and postretirement obligations		$ 132	$ 140
Accrued expenses		32	57
Inventory		12	11
Net operating loss carryforwards		535	506
Tax credit carryforwards		247	273
Other		322	227
Subtotal		1,280	1,214
Valuation allowance	[1]	(748)	(714)
Total		532	500
Deferred Tax Liabilities
Depreciation and amortization		256	411
Investments in affiliates		402	192
Other		124	58
Total		782	661
Net deferred tax assets (liabilities)		$ (250)	$ (161)

[1] Includes deferred tax asset valuation allowances for the Company's deferred tax assets in the US, Luxembourg, Spain, China, the United Kingdom, Mexico, Canada and France. These valuation allowances relate primarily to net operating loss carryforward benefits and other net deferred tax assets, all of which may not be realizable.