Long-Lived Asset Impairments and Other - Impairment of Long Lived Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment		$ 141		$ 571
Intangible Assets		22		159
Right of Use Assets		15		88
Total Impairment Charges	$ 0	178	$ 0	818
Western Hemisphere
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment		94		316
Intangible Assets		13		44
Right of Use Assets		7		56
Total Impairment Charges		114		416
Eastern Hemisphere
Impaired Long-Lived Assets Held and Used [Line Items]
Property, Plant and Equipment		47		255
Intangible Assets		9		115
Right of Use Assets		8		32
Total Impairment Charges		$ 64		$ 402