The average effective interest rate during the reporting period.

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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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No definition available.

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Fair value of the amount outstanding under the credit facility.

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The effective interest rate during the reporting period.

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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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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Debt (Senior Credit Facilities) (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Jun. 30, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 19, 2014
Debt Instrument [Line Items]
Long-term debt		$ 8,138.5us-gaap_LongTermDebt	$ 7,586.5us-gaap_LongTermDebt
Write-off of deferred financing fees	8.7
Line of credit \| New Revolving Facility
Debt Instrument [Line Items]
Revolving Facility, maximum borrowing capacity				1,500
Revolving facility interest rate		1.325%
Facility fee		0.175%
Revolving facility amount outstanding		0
Loans payable \| U.S. Term Loans
Debt Instrument [Line Items]
Long-term debt		800.0	0	800.0
Term loan interest rate		1.375%
Subfacility for letters of credit \| Line of credit \| New Revolving Facility
Debt Instrument [Line Items]
Revolving Facility, maximum borrowing capacity				150
Subfacility for swingline borrowings \| Line of credit \| New Revolving Facility
Debt Instrument [Line Items]
Revolving Facility, maximum borrowing capacity				$ 125