Debt Debt Maturities (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Line of Credit Facility [Line Items]
Long-term debt maturities, 2015	$ 21.2
Long-term debt maturities, 2016	669.0
Long-term debt maturities, 2017	12.9
Long-term debt maturities, 2018	1,530.9
Long-term debt maturities, 2019	12.1
Long-term debt maturities, 2020 and thereafter	3,740.7
Debt and capital lease obligations	5,986.8us-gaap_DebtAndCapitalLeaseObligations	6,002.4us-gaap_DebtAndCapitalLeaseObligations
Interest paid	404.4us-gaap_InterestPaid	388.2us-gaap_InterestPaid	396.1us-gaap_InterestPaid
Unamortized discount (premium), net	88.7
Unamortized debt issuance expense which will be amortized to interest expense over the next five years	$ 62.4

Unamortized Debt Issuance Expense Which Will Be Amortized To Interest Expense Over The Next Five Years.

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- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

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-Publisher FASB

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

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- Definition

The amount of cash paid for interest during the period.

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- Definition

Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year.

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Amount of long-term debt, sinking fund requirements, and other securities redeemable at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year.

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