Income Taxes (Details 2) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
Operating Loss Carryforwards	$ 181	$ 176
Deferred Tax Assets, Capital Loss Carryforwards	3	3
Net deferred tax assets (liabilities) [Abstract]
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	226	230
Employee benefits	82	85
Share-based compensation	58	55
Lease related liabilities	199	199
Various liabilities	47	49
Deferred Tax Assets, Goodwill and Intangible Assets	678	602
Deferred Tax Assets, Property, Plant and Equipment	31	21
Deferred income and other	81	55
Gross deferred tax assets	1,636	1,505
Deferred tax asset valuation allowances	(789)	(787)	$ (454)
Net deferred tax assets	847	718
Intangible assets, including goodwill	(1)	(40)
Property, plant and equipment	(75)	(44)
Deferred Tax Liabilities Deemed Repatriation	(161)	(156)
Other	(57)	(31)
Gross deferred tax liabilities	(294)	(271)
Deferred Tax Assets, Net	553	447
Reported in Consolidated Balance Sheets as:
Deferred Tax Assets, Net	553	447
Income (Loss) from Continuing Operations before Income Taxes, Domestic	684	466	726
Income (Loss) from Continuing Operations before Income Taxes, Foreign	336	907	1,113
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	1,020	1,373	$ 1,839
Deferred Tax Assets, Derivative Instruments	$ 50	$ 30