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

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Amount as of the balance sheet date of the unamortized adjustment to the carrying value of an interest-bearing hedged item made under an effective fair value hedge that is amortized upon discontinuation of the fair value hedge.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 25

-Section 35

-Paragraph 9

-URI http://asc.fasb.org/extlink&oid=6439857&loc=d3e75592-113984

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- Definition

The amount of cash received during the period on settlement of a hedge.

+ References

No definition available.

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- Definition

Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5624171-113959

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Derivative Instruments (Narrative) (Details) (USD $)	1 Months Ended	12 Months Ended
Derivative Instruments (Narrative) (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2014	Dec. 31, 2013	Jul. 31, 2011
Interest Rate Swap [Member] \| Fair Value Hedging [Member]
Derivative [Line Items]
Notional amount				$ 300,000,000
Gain recognized upon termination	18,000,000
Deferred (gain) loss on discontinuation of fair value hedge		(33,000,000)	(42,000,000)
Interest rate derivatives [Member] \| Cash Flow Hedging [Member]
Derivative [Line Items]
Unrealized gain (loss) on interest rate cash flow hedges		(11,000,000)	(11,000,000)
Foreign currency forward contracts [Member]
Derivative [Line Items]
Notional amount		1,612,000,000	992,000,000
Cross-currency swap contracts [Member]
Derivative [Line Items]
Notional amount		$ 168,000,000	$ 168,000,000
Senior Notes, 6.35% due 2017 [Member] \| Senior Notes [Member]
Derivative [Line Items]
Stated interest rate on debt		6.35%
Senior Notes, 6.35% due 2017 [Member] \| Senior Notes [Member] \| Interest Rate Swap [Member] \| Fair Value Hedging [Member]
Derivative [Line Items]
Stated interest rate on debt				6.35%