Fair Value Disclosures (Recurring Fair Value Measurements) (Details) - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015 | Mar. 31, 2015 | Dec. 31, 2014 |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | $ 25.5 | $ 16.4 | | |
Derivative Asset, Fair Value, Gross Asset | | 17.6 | 9.5 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 14.4 | 13.5 | | |
Derivative Liability, Fair Value, Gross Liability | | 14.4 | 13.5 | | |
Cash and cash equivalents | | 8,180.9 | 274.8 | $ 215.4 | $ 199.4 |
Other assets | | 293.4 | 273.4 | | |
Investment Securities, Including Mutual Funds [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | [1] | 7.9 | 6.9 | | |
Forward Starting Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | | 0.1 | | |
Cross Currency Interest Rate Contract [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | | 0.6 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 12.8 | | | |
Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 16.2 | 2.2 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | | 5.3 | | |
Foreign Currency Derivatives [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 1.4 | 6.6 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 1.6 | 1.7 | | |
Cash and Cash Equivalents [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Cash and cash equivalents | | 2.9 | 2 | | |
Other Assets [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Other assets | | 5 | 4.9 | | |
Fair Value, Inputs, Level 1 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 4.6 | 4.5 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 0 | 0 | | |
Fair Value, Inputs, Level 1 [Member] | Investment Securities, Including Mutual Funds [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | [1] | 4.6 | 4.5 | | |
Fair Value, Inputs, Level 1 [Member] | Forward Starting Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | | 0 | | |
Fair Value, Inputs, Level 1 [Member] | Cross Currency Interest Rate Contract [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | | 0 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 0 | | | |
Fair Value, Inputs, Level 1 [Member] | Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 0 | 0 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | | 0 | | |
Fair Value, Inputs, Level 1 [Member] | Foreign Currency Derivatives [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 0 | 0 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 0 | 0 | | |
Fair Value, Inputs, Level 2 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 20.9 | 11.9 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 14.4 | 13.5 | | |
Fair Value, Inputs, Level 2 [Member] | Investment Securities, Including Mutual Funds [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | [1] | 3.3 | 2.4 | | |
Fair Value, Inputs, Level 2 [Member] | Cross Currency Interest Rate Contract [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | | 0.6 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 12.8 | | | |
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 16.2 | 2.2 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | | 5.3 | | |
Fair Value, Inputs, Level 2 [Member] | Foreign Currency Derivatives [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 1.4 | 6.6 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 1.6 | 1.7 | | |
Fair Value, Inputs, Level 3 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 0 | 0 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 0 | 0 | | |
Fair Value, Inputs, Level 3 [Member] | Investment Securities, Including Mutual Funds [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 0 | 0 | | |
Fair Value, Inputs, Level 3 [Member] | Forward Starting Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | | 0 | | |
Fair Value, Inputs, Level 3 [Member] | Cross Currency Interest Rate Contract [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | | 0 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 0 | | | |
Fair Value, Inputs, Level 3 [Member] | Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 0 | 0 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | | 0 | | |
Fair Value, Inputs, Level 3 [Member] | Foreign Currency Derivatives [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Assets, Fair Value Disclosure | | 0 | 0 | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | 0 | 0 | | |
Prepaid Expenses And Other [Member] | Fair Value, Inputs, Level 2 [Member] | Forward Starting Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Asset, Fair Value, Gross Asset | | | 0.1 | | |
Other Noncurrent Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Liability, Fair Value, Gross Liability | | 0 | 5.3 | | |
Other Assets [Member] | Fair Value, Inputs, Level 2 [Member] | Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Asset, Fair Value, Gross Asset | | 16.2 | 2.2 | | |
Cross Currency Interest Rate Contract [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | | 3.3 | | |
Cross Currency Interest Rate Contract [Member] | Other Noncurrent Liabilities [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Liability, Fair Value, Gross Liability | | 12.8 | 3.3 | | |
Cross Currency Interest Rate Contract [Member] | Other Noncurrent Liabilities [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | | 0 | | |
Cross Currency Interest Rate Contract [Member] | Other Noncurrent Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | | 3.3 | | |
Cross Currency Interest Rate Contract [Member] | Other Noncurrent Liabilities [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Financial and Nonfinancial Liabilities, Fair Value Disclosure | | | 0 | | |
Cross Currency Interest Rate Contract [Member] | Other Assets [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Asset, Fair Value, Gross Asset | | 0 | 0.6 | | |
Forward Starting Interest Rate Swaps [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Liability, Fair Value, Gross Liability | | | 3.2 | | |
Forward Starting Interest Rate Swaps [Member] | Other Noncurrent Liabilities [Member] | Fair Value, Inputs, Level 1 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Liability, Fair Value, Gross Liability | | | 0 | | |
Forward Starting Interest Rate Swaps [Member] | Other Noncurrent Liabilities [Member] | Fair Value, Inputs, Level 3 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Liability, Fair Value, Gross Liability | | | 0 | | |
Forward Starting Interest Rate Swaps [Member] | Other Assets [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Asset, Fair Value, Gross Asset | | 0 | 0.1 | | |
Forward Starting Interest Rate Swaps [Member] | Accrued Liabilities [Member] | Fair Value, Inputs, Level 2 [Member] | | | | | |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | | | | | |
Derivative Liability, Fair Value, Gross Liability | | $ 0 | $ 3.2 | | |
| |
[1] | The values of investment securities, including mutual funds, are classified as cash and cash equivalents ($2.9 million and $2.0 million as of March 31, 2016 and December 31, 2015, respectively) and other assets ($5.0 million and $4.9 million as of March 31, 2016 and December 31, 2015, respectively). | |