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Derivative Instruments and Hedging Activities - Part 1 (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ (37,000,000)		$ (37,000,000)		$ (44,000,000)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	0	$ (62,000,000)	(13,000,000)	$ (69,000,000)
Interest Rate Contract [Member]
Derivative Tables [Line Items]
Derivative Liability, Fair Value, Gross Liability	(682,000,000)		(682,000,000)		(328,000,000)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	0	0	0	0
Interest Rate Contract [Member] | Libor and Euribor [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	4,750,000,000		4,750,000,000
Cross currency derivatives [Member]
Derivative Tables [Line Items]
Derivative Liability, Fair Value, Gross Liability	(27,000,000)		(27,000,000)		(21,000,000)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	0	0	0	0
Commodity Contract [Member]
Derivative Tables [Line Items]
Derivative Liability, Fair Value, Gross Liability	(24,000,000)		(24,000,000)		(31,000,000)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	1,000,000	(2,000,000)	2,000,000	(2,000,000)
Derivative Liability, Fair Value, Gross Liability	(770,000,000)		(770,000,000)		$ (424,000,000)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Period Increase (Decrease)	1,000,000	$ (64,000,000)	(11,000,000)	$ (71,000,000)
Natural Gas and Natural Gas Liquids [Member]
Derivative Tables [Line Items]
Commodity Contract Asset, Current	30,000,000		30,000,000
Energy [Domain]
Derivative Tables [Line Items]
Commodity Contract Asset, Current	10,000,000		10,000,000
Coal [Member]
Derivative Tables [Line Items]
Commodity Contract Asset, Current	9,000,000		9,000,000
Unidad de Fomento (funds code) | Cross currency derivatives [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	191,000,000		191,000,000
Argentina, Pesos | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	103,000,000		103,000,000
Chile, Pesos | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	129,000,000		129,000,000
Colombia, Pesos | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	133,000,000		133,000,000
Mexico, Pesos | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	217,000,000		217,000,000
Euro Member Countries, Euro | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	131,000,000		131,000,000
Other unspecified currency [Domain] | Foreign Exchange Contract [Member]
Derivative Tables [Line Items]
Derivatives, notional amount	$ 34,000,000		$ 34,000,000

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Carrying amount as of the balance sheet date of the asset arising from commodity contracts such as futures contracts tied to the movement of a particular commodity, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer.

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