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Derivative Instruments and Hedging Activities (Outstanding Derivative Notionals and Terms by Type) (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative, notional amount	$ 1,800,000,000
Libor and Euribor [Member] | Interest Rate Contract
Derivative [Line Items]
Derivative, notional amount	5,014,000,000
Unidad de Fomento (funds code) | Cross Currency Interest Rate Contract [Member]
Derivative [Line Items]
Derivative, notional amount	260,000,000
Argentina, Pesos | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, notional amount	30,000,000
Chilean Peso CLP [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, notional amount	163,000,000
Colombian Peso COP [Member] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, notional amount	139,000,000
Brazil, Brazil Real | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, notional amount	5,000,000
Other unspecified currency [Domain] | Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative, notional amount	90,000,000
Other Noncurrent Assets [Member]
Derivative [Line Items]
Derivative Asset, Noncurrent	99,000,000	$ 187,000,000
Other Noncurrent Liabilities [Member]
Derivative [Line Items]
Derivative Liability, Noncurrent	298,000,000	$ 206,000,000
Natural Gas and Natural Gas Liquids [Member]
Derivative [Line Items]
Commodity Contract Asset, Current	71,000,000
Energy [Domain]
Derivative [Line Items]
Commodity Contract Asset, Current	1,000,000
Coal [Member]
Derivative [Line Items]
Commodity Contract Asset, Current	$ 10,000,000

X

- Definition

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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, expected to be settled after one year or the normal operating cycle, if longer. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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+ References

No definition available.

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
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