Pension and Other Retiree Benefits (Fair Value of Plan Assets) (Details) - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 |
U.S. | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | $ 145.8 | $ 163.9 | $ 156.3 |
U.S. | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 89.5 | 101.5 | |
U.S. | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 56.3 | 62.4 | |
U.S. | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Common stocks | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 6.9 | 8.3 | |
U.S. | Common stocks | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 6.9 | 8.3 | |
U.S. | Common stocks | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Common stocks | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Mutual funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 82.6 | 93.2 | |
U.S. | Mutual funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 82.6 | 93.2 | |
U.S. | Mutual funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Mutual funds | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Common collective trust funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 2.1 | 8.9 | |
U.S. | Common collective trust funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Common collective trust funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 2.1 | 8.9 | |
U.S. | Common collective trust funds | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Government debt securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 3.1 | 2.2 | |
U.S. | Government debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Government debt securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 3.1 | 2.2 | |
U.S. | Government debt securities | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Corporate debt securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 19 | 16.7 | |
U.S. | Corporate debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Corporate debt securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 19 | 16.7 | |
U.S. | Corporate debt securities | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Asset-backed securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 8.8 | 9.8 | |
U.S. | Asset-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Asset-backed securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 8.8 | 9.8 | |
U.S. | Asset-backed securities | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Multi-strategy hedge funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 9.2 | 9.5 | |
U.S. | Multi-strategy hedge funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Multi-strategy hedge funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 9.2 | 9.5 | |
U.S. | Multi-strategy hedge funds | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Government mortgage-backed securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 7.3 | 8 | |
U.S. | Government mortgage-backed securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Government mortgage-backed securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 7.3 | 8 | |
U.S. | Government mortgage-backed securities | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Collateralized mortgage obligations, mortgage backed securities, and other | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 6.8 | 7.3 | |
U.S. | Collateralized mortgage obligations, mortgage backed securities, and other | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
U.S. | Collateralized mortgage obligations, mortgage backed securities, and other | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 6.8 | 7.3 | |
U.S. | Collateralized mortgage obligations, mortgage backed securities, and other | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 318.9 | 351.2 | $ 342.8 |
International | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 143.8 | 162.8 | |
International | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 174.4 | 187.5 | |
International | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0.7 | 0.9 | |
International | Cash and cash equivalents | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1.2 | 6.1 | |
International | Cash and cash equivalents | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 1.2 | 6.1 | |
International | Cash and cash equivalents | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Cash and cash equivalents | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Mutual funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 142.6 | 156.7 | |
International | Mutual funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 142.6 | 156.7 | |
International | Mutual funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Mutual funds | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Foreign corporate debt securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 121.6 | 118.6 | |
International | Foreign corporate debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Foreign corporate debt securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 121.6 | 118.6 | |
International | Foreign corporate debt securities | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Multi-strategy hedge funds | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 23.7 | 25.1 | |
International | Multi-strategy hedge funds | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Multi-strategy hedge funds | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 23.7 | 25.1 | |
International | Multi-strategy hedge funds | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Insurance contracts | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 15.3 | 18.4 | |
International | Insurance contracts | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Insurance contracts | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 15.3 | 18.4 | |
International | Insurance contracts | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Other debt securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | | 12.1 | |
International | Other debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | | 0 | |
International | Other debt securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | | 12.1 | |
International | Other debt securities | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | | 0 | |
International | Real estate | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 11.3 | 10.6 | |
International | Real estate | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Real estate | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 10.6 | 9.7 | |
International | Real estate | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0.7 | 0.9 | |
International | Foreign government debt securities | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 3.2 | 3.6 | |
International | Foreign government debt securities | Quoted Prices in Active Markets for Identical Assets (Level 1) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 0 | 0 | |
International | Foreign government debt securities | Fair Value, Inputs, Level 2 | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | 3.2 | 3.6 | |
International | Foreign government debt securities | Significant Unobservable Inputs (Level 3) | | | |
Defined Benefit Plan Disclosure [Line Items] | | | |
Fair value of plan assets | $ 0 | $ 0 | |