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Income Taxes (Effective Rate Reconciliation) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 | Sep. 30, 2015 | Jun. 30, 2015 | Mar. 31, 2015 | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Income Tax Contingency [Line Items] |  |  |  |  |  |  |  |  |  |  |
U.S. statutory rate (as a percent) |  |  |  |  |  |  |  |  | 35.00% |  |
Tax (expense) benefit at the U.S. statutory rate |  |  |  |  |  |  |  |  | $ (54.2) | $ 10.2 | $ (55.5)
Differences in taxes resulting from: |  |  |  |  |  |  |  |  |  |  |
Non-U.S. earnings, net of foreign taxes |  |  |  |  |  |  |  |  | (76.7) | (37.8) | (75.1)
Change in valuation allowance |  |  |  |  |  |  |  |  | (18.7) | (36.0) | (49.9)
Withholding tax |  |  |  |  |  |  |  |  | (1.2) | (2.4) | (1.0)
Tax exempt interest and dividends |  |  |  |  |  |  |  |  | 2.6 | 2.5 | 2.4
Tax reserve adjustments |  |  |  |  |  |  |  |  | (1.7) | 5.2 | (1.2)
Other, net |  |  |  |  |  |  |  |  | (2.8) | (2.5) | (2.5)
Income tax (expense) benefit | $ 1.5 | $ 1.6 | $ 2.2 | $ (4.6) | $ 26.2 | $ 4.7 | $ (7.1) | $ (9.0) | 0.7 | 14.8 | (32.6)
Pre-tax loss | $ 258.1 | $ (94.6) | $ (9.1) | $ 0.5 | $ (65.7) | $ (35.5) | $ 33.6 | $ 38.6 | 154.9 | (29.0) | 158.6
Tax Payments and Receipts |  |  |  |  |  |  |  |  |  |  |
Net income tax payments to (receipts from) national governments, total |  |  |  |  |  |  |  |  | (6.5) | 2.7 | 3.6
Non-US |  |  |  |  |  |  |  |  |  |  |
Differences in taxes resulting from: |  |  |  |  |  |  |  |  |  |  |
Pre-tax loss |  |  |  |  |  |  |  |  | $ 209.5 | $ 60.4 | $ 163.7

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