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Derivative Instruments and Hedging Activities - Part 1 (Details) - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Derivative Tables [Line Items] |  |
Derivative Liability, Fair Value, Gross Liability | $ 607 | $ 490
Interest Rate Contract [Member] | Libor and Euribor [Member] |  |
Derivative Tables [Line Items] |  |
Derivatives, notional amount | 3,201 |
Foreign Exchange Contract [Member] |  |
Derivative Tables [Line Items] |  |
Derivative Liability, Fair Value, Gross Liability | 60 | $ 56
Unidad de Fomento (funds code) | Cross currency derivatives [Member] |  |
Derivative Tables [Line Items] |  |
Derivatives, notional amount | 169 |
Unidad de Fomento (funds code) | Foreign Exchange Contract [Member] |  |
Derivative Tables [Line Items] |  |
Derivatives, notional amount | 304 |
Argentina, Pesos | Foreign Exchange Contract [Member] |  |
Derivative Tables [Line Items] |  |
Derivatives, notional amount | 162 |
Other unspecified currency [Domain] | Foreign Exchange Contract [Member] |  |
Derivative Tables [Line Items] |  |
Derivatives, notional amount | $ 687 |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition Fair value, before 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. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=51814546&loc=SL51823488-111719 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313 + Details
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