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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2018
Income Tax Disclosure [Abstract] |
Components of Effective Income Tax Rate Reconciliation and Comprehensive Provision for Income Taxes Allocation |
| Three months ended |
| March 31, |
| 2017 |  |  | 2018 |
| (In millions) |
Expected tax expense, at U.S. federal statutory income tax rate of 35% in 2017 and 21% in 2018 | $ | 16.7 |  |  | $ | 20.9 |
Non-U.S. tax rates |  | (2.4 | ) |  |  | 7.1 |
Incremental net tax expense (benefit) on earnings and losses of U.S. and non-U.S. companies |  | 1.2 |  |  |  | .4 |
Valuation allowance |  | (5.0 | ) |  |  | - |
Adjustment to reserve for uncertain tax positions, net |  | - |  |  |  | 1.4 |
Canada-Germany APA |  | - |  |  |  | (1.4 | )
Nondeductible expenses |  | - |  |  |  | .3 |
U.S. state income tax and other, net |  | .5 |  |  |  | .3 |
Income tax expense | $ | 11.0 |  |  | $ | 29.0 |
Comprehensive provision for income taxes allocable to: |  |  |  |  |  |  |
Net income | $ | 11.0 |  |  | $ | 29.0 |
Other comprehensive income (loss): |  |  |  |  |  |  |
Pension plans |  | .2 |  |  |  | 1.1 |
Marketable securities |  | (.1 | ) |  |  | - |
Interest rate swap |  | .3 |  |  |  | - |
Total | $ | 11.4 |  |  | $ | 30.1 |

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