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Fair Value Measurements - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2020	Dec. 31, 2019
Naples, Italy Manufacturing Plant
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Assets held-for-sale, fair value	$ 0
Impairment of assets to be disposed of	$ 25
South Africa Operations
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets held-for-sale		$ 35
Assets held-for-sale, fair value		$ 5
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value			$ 5,880	$ 5,000