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Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Gross	$ 2,549	$ 2,484
Accumulated amortization	(669)	(469)
Net	1,880	2,015
Amortization expense	180	186	$ 148
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2021	180
2022	180
2023	179
2024	166
2025	162
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	1,661	1,621
Accumulated amortization	(470)	(331)
Net	1,191	1,290
Trade names
Finite-Lived Intangible Assets [Line Items]
Gross	565	541
Accumulated amortization	(65)	(40)
Net	500	501
Technology
Finite-Lived Intangible Assets [Line Items]
Gross	165	158
Accumulated amortization	(67)	(41)
Net	98	117
Long term supply contracts
Finite-Lived Intangible Assets [Line Items]
Gross	142	150
Accumulated amortization	(55)	(48)
Net	87	102
Patents
Finite-Lived Intangible Assets [Line Items]
Gross	16	14
Accumulated amortization	(12)	(9)
Net	$ 4	$ 5

X

- Definition

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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