Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

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

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994

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- Definition

The cash inflow associated with the sale of a borrowing supported by a written promise to pay an obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3179-108585

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Fair Value Measurements and Derivatives - Additional Information (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2014 Foreign Exchange Forward [Member]	Dec. 31, 2013 Foreign Exchange Forward [Member]	Sep. 30, 2014 Currency Swap [Member]	Dec. 31, 2013 Currency Swap [Member]	Sep. 30, 2014 Not Designated as Hedging Instrument [Member]	Sep. 30, 2014 Not Designated as Hedging Instrument [Member] Foreign Exchange Forward [Member]	Sep. 30, 2014 Not Designated as Hedging Instrument [Member] Currency Swap [Member]	Mar. 31, 2014 Not Designated as Hedging Instrument [Member] Currency Swap [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Notes receivable sold	$ 75
Notional amounts of derivatives	343	262	252	81	297	141	60	81	225
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	$ (4)