Intangible Assets - Gross Carrying Amount and Accumulated Amortization of Finite-lived Intangible Assets (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross	$ 2,460	$ 2,484
Accumulated amortization	(596)	(469)
Net	1,864	2,015
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	1,605	1,621
Accumulated amortization	(421)	(331)
Net	1,184	1,290
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross	553	541
Accumulated amortization	(58)	(40)
Net	495	501
Technology
Finite-Lived Intangible Assets [Line Items]
Gross	162	158
Accumulated amortization	(60)	(41)
Net	102	117
Long term supply contracts
Finite-Lived Intangible Assets [Line Items]
Gross	126	150
Accumulated amortization	(47)	(48)
Net	79	102
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Gross	14	14
Accumulated amortization	(10)	(9)
Net	$ 4	$ 5