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

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Carrying value as of the balance sheet date of long-term unsecured obligations issued by corporations and other borrowers to investors (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Face (par) amount of debt instrument at time of issuance.

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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The face amount of accounts receivable that will be sold to other entities.

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Debt (Details Textual) (USD $)	12 Months Ended	9 Months Ended	1 Months Ended
Debt (Details Textual) (USD $)	Dec. 31, 2014 Institutions	Sep. 30, 2014	Jan. 31, 2015	Dec. 31, 2013	May 31, 2014	Feb. 28, 2014	Sep. 30, 2013
Debt Instrument [Line Items]
Unamortized original issue discounts	$ 8,000,000			$ 8,000,000
Aggregate notional amount of interest rate swaps				400,000,000invest_DerivativeNotionalAmount
Maximum borrowing capacity under global revolving credit facility	900,000,000
Number of lending institutions	12r_NumberOfLendingInstitutions
Global revolving credit facility covenant terms, debt to consolidated tangible net worth ratio	less than or equal to 300%
Debt to consolidated net worth ratio	188.00%r_DebtToConsolidatedNetWorthRatio
Amount available under the credit facility, net of outstanding commercial paper borrowings	612,000,000
Annual facility fee	0.125%
Commercial paper classified as long term debt	276,694,000us-gaap_CommercialPaperNoncurrent
Trade receivables borrowings	60,000,000
Current portion of long-term debt	699,000,000
Total available proceeds under trade receivables purchase and sale program	175,000,000r_TradeReceivablesProgramProceedsLimit
Amount outstanding under trade receivables purchase and sale program	0			0
Unsecured Medium Term Notes due March 2017 [Member]
Debt Instrument [Line Items]
Repurchase price condition of notes	101% of Principal Plus Accrued And Unpaid Interest
Commercial paper [Member]
Debt Instrument [Line Items]
Commercial paper classified as long term debt				498,000,000
Unsecured Medium Term Notes Due September 2019 [Domain]
Debt Instrument [Line Items]
Face amount of unsecured medium-term notes issued					400,000,000
Unsecured Medium Term Notes Due 2019 [Member]
Debt Instrument [Line Items]
Face amount of unsecured medium-term notes issued						350,000,000
Repurchase price condition of notes		101% of principal plus accrued and unpaid interest
Subsequent Event [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity under global revolving credit facility			1,200,000,000
Annual facility fee			0.10%
Minimum [Member]
Debt Instrument [Line Items]
Annual facility fee	0.08%
Minimum [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Annual facility fee			0.075%
Maximum [Member]
Debt Instrument [Line Items]
Annual facility fee	0.275%
Maximum [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Annual facility fee			0.25%
Letter of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity under global revolving credit facility							75,000,000
Letter of credit outstanding amount							0
Designated as Hedging Instrument [Member] \| Fair Value Hedging [Member] \| Interest Rate Swap [Member]
Debt Instrument [Line Items]
Aggregate notional amount of interest rate swaps	$ 600,000,000			$ 400,000,000