[Line Items] for Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Table]

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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 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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

+ Details

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- Definition

Amount of the hedged item as of the balance sheet date related to the derivative. For example, the hedged balance on a debt instrument.

+ References

No definition available.

+ Details

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- Definition

Number of interest rate derivative instruments held by the entity at the reporting date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1B

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5580258-113959

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 1A

-Subparagraph (d)

-URI http://asc.fasb.org/extlink&oid=35706170&loc=SL5579245-113959

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Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities - Fixed Rate Bonds (Details) $ in Millions	Jun. 30, 2015 Swap	Sep. 30, 2014 Swap	Jun. 30, 2014 USD ($) Swap	Sep. 30, 2013 USD ($) Swap	Mar. 31, 2011 USD ($) Swap
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held	12	13	13
1.75% fixed rate notes, due 2014 \| Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held					5
Derivative, Amount of Hedged Item \| $					$ 450
Debt Instrument, Interest Rate, Stated Percentage					1.75%
7.7% due 2015 \| Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held				1
Derivative, Amount of Hedged Item \| $				$ 125
Debt Instrument, Interest Rate, Stated Percentage				7.70%
5.5% due 2016 \| Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held				4
Derivative, Amount of Hedged Item \| $				$ 800
Debt Instrument, Interest Rate, Stated Percentage				5.50%
2.6% due 2017 \| Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held			4
Derivative, Amount of Hedged Item \| $			$ 400
Debt Instrument, Interest Rate, Stated Percentage			2.60%
1.4% due 2018
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Debt Instrument, Interest Rate, Stated Percentage			1.40%
1.4% due 2018 \| Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held			3
Derivative, Amount of Hedged Item \| $			$ 300
Debt Instrument, Interest Rate, Stated Percentage			1.40%
7.125% due 2017 \| Interest Rate Swaps
Derivative Instruments and Hedging Activities - Fixed Rate Bonds [Line Items]
Number of Interest Rate Derivatives Held			1
Derivative, Amount of Hedged Item \| $			$ 150
Debt Instrument, Interest Rate, Stated Percentage			7.125%