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CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Accumulated Other Comprehensive Income (Loss) | Common Stock in Treasury | Noncontrolling Interest
--- | --- | --- | --- | --- | --- | --- | ---
Total stockholders' equity, Beginning of Period at Dec. 31, 2014 | $ 2,039.1 | $ 1.2 | $ 1,251.5 | $ 1,984.9 | $ (429.8) | $ (801.9) | $ 33.2
Shares oustanding, Beginning of Period (in shares) at Dec. 31, 2014 |  | 105.4 |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income (loss) | 149.0 | $ 0.0 | 0.0 | 145.9 | 0.0 | 0.0 | 3.1
Other Comprehensive Income (Loss), Net of Tax | (219.9) | 0.0 | 0.0 | 0.0 | (219.8) | 0.0 | (0.1)
Issuance of Common Stock | 25.9 | $ 0.1 | 25.8 | 0.0 | 0.0 | 0.0 | 0.0
Issuance of Common Stock (in shares) |  | 4.3 |  |  |  |  |
Compensation under Stock-based Plans - net | (2.2) | $ 0.0 | (4.5) | 0.0 | 0.0 | 2.3 | 0.0
Compensation under Stock-based Plans - net (in shares) |  | 0.0 |  |  |  |  |
Dividends | (26.1) | $ 0.0 | 0.4 | (26.2) | 0.0 | 0.0 | (0.3)
Purchase of noncontrolling interest | (1.2) | 0.0 | 0.1 | 0.0 | 0.0 | 0.0 | (1.3)
Acquisition of Treasury Stock | (52.6) | $ 0.0 | 0.0 | 0.0 | 0.0 | (52.6) | 0.0
Acquisition of Treasury Stock (in shares) |  | (2.0) |  |  |  |  |
Shares outstanding, End of Period (in shares) at Dec. 31, 2015 |  | 107.7 |  |  |  |  |
Total stockholders' equity, End of Period at Dec. 31, 2015 | 1,912.0 | $ 1.3 | 1,273.3 | 2,104.6 | (649.6) | (852.2) | 34.6
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income (loss) | (175.5) | 0.0 | 0.0 | (176.1) | 0.0 | 0.0 | 0.6
Other Comprehensive Income (Loss), Net of Tax | (130.2) | 0.0 | 0.0 | 0.0 | (129.8) | 0.0 | (0.4)
Issuance of Common Stock | 22.1 | $ 0.0 | 22.1 | 0.0 | 0.0 | 0.0 | 0.0
Issuance of Common Stock (in shares) |  | 0.8 |  |  |  |  |
Compensation under Stock-based Plans - net | 5.4 | $ 0.0 | 4.0 | 0.0 | 0.0 | 1.4 | 0.0
Proceeds from Noncontrolling Interests | 2.9 | $ 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.9
Compensation under Stock-based Plans - net (in shares) |  | 0.1 |  |  |  |  |
Dividends | (31.2) | $ 0.0 | 0.6 | (30.6) | 0.0 | 0.0 | (1.2)
Acquisition of Treasury Stock | (84.3) | $ 0.0 | 0.0 | 0.0 | 0.0 | (84.3) | 0.0
Acquisition of Treasury Stock (in shares) |  | (3.6) |  |  |  |  |
Shares outstanding, End of Period (in shares) at Dec. 31, 2016 |  | 105.0 |  |  |  |  |
Total stockholders' equity, End of Period at Dec. 31, 2016 | 1,521.2 | $ 1.3 | 1,300.0 | 1,897.9 | (779.4) | (935.1) | 36.5
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income (loss) | 128.7 | 0.0 | 0.0 | 128.7 | 0.0 | 0.0 | 0.0
Other Comprehensive Income (Loss), Net of Tax | 539.9 | 0.0 | 0.0 | 0.0 | 539.9 | 0.0 | 0.0
Issuance of Common Stock | 21.0 | $ 0.0 | 21.0 | 0.0 | 0.0 | 0.0 | 0.0
Issuance of Common Stock (in shares) |  | 0.8 |  |  |  |  |
Compensation under Stock-based Plans - net | 3.8 | $ 0.0 | 0.2 | (0.4) | 0.0 | 4.0 | 0.0
Compensation under Stock-based Plans - net (in shares) |  | 0.2 |  |  |  |  |
Dividends | (29.5) | $ 0.0 | 0.8 | (30.3) | 0.0 | 0.0 | 0.0
Divestiture | (36.0) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | (36.0)
Acquisition of Treasury Stock | (926.6) | $ 0.0 | 0.0 | 0.0 | 0.0 | (926.6) | 0.0
Acquisition of Treasury Stock (in shares) |  | (25.8) |  |  |  |  |
Shares outstanding, End of Period (in shares) at Dec. 31, 2017 |  | 80.2 |  |  |  |  |
Total stockholders' equity, End of Period at Dec. 31, 2017 | $ 1,222.5 | $ 1.3 | $ 1,322.0 | $ 1,995.9 | $ (239.5) | $ (1,857.7) | $ 0.5

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