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v3.19.1

Shareholders's Equity (Schedule of Activity) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Jan. 01, 2018
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 8,088.8 |  |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | (188.0) | $ (140.5) |
Other Comprehensive Income (Loss), Net of Tax | 1.5 | $ (0.4) |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 7,900.3 |  |
Common Stock, Dividends, Per Share, Cash Paid | $ 0.04 | $ 0.04 |
Common Stock [Member] |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
Shares, Issued | 115.2 | 111.8 |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 46.2 | $ 44.8 |
Shares, Issued | 115.2 | 111.8 |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 46.2 | $ 44.8 |
Additional Paid-in Capital [Member] |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ 7,225.0 | $ 7,195.0 |
Shares Issued Under Share Based Compensation Plans, Shares | (0.1) | (0.1) |
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition | $ 5.3 | $ 7.5 |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 7,230.2 | 7,202.4 |
Retained Earnings [Member] |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 874.2 | 1,532.7 |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | (190.4) | (140.1) |
Dividends, Common Stock, Cash | (4.5) | (4.4) |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 679.3 | 1,387.4 |
Retained Earnings [Member] | Accounting Standards Update 2018-02 [Member] |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification |  |  | $ (0.8)
AOCI Attributable to Parent [Member] |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 18.2 | 28.6 |
Other Comprehensive Income (Loss), Net of Tax | 1.5 |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | 19.7 | 29.0 |
AOCI Attributable to Parent [Member] | Accounting Standards Update 2018-02 [Member] |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification |  |  | $ 0.8
Treasury Stock [Member] |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ (72.2) | $ (69.0) |
Shares Issued Under Share Based Compensation Plans, Shares | 0.1 | 0.1 |
Stock Repurchased During Period, Value | $ (2.8) | $ (1.1) |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (74.9) | (70.0) |
Noncontrolling Interest [Member] |  |  |
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward] |  |  |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | (2.6) | (2.1) |
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest | 2.4 | (0.4) |
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest | $ (0.2) | $ (2.5) |

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