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Consolidated Statements of Stockholders' (Deficit) Equity Consolidated Statements of Stockholders' (Deficit) Equity - USD ($) $ in Millions | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Retained Earnings [Member] | AOCI Attributable to Parent [Member] | Treasury Stock [Member]
--- | --- | --- | --- | --- | --- | ---
Treasury Stock, Shares |  |  |  |  |  | 45,400,000
Beginning balance at Dec. 31, 2017 | $ 50.1 | $ 0.9 | $ 1,061.5 | $ 1,575.9 | $ (157.4) | $ (2,430.8)
Cumulative Effect on Retained Earnings, Net of Tax | (6.2) |  |  | 18.3 | (24.5) |
Net income | 175.5 |  |  | 175.5 |  |
Dividends, Common Stock, Cash | (46.9) |  |  | (46.9) |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent | (9.6) |  |  |  | (9.6) |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | 10.0 |  |  |  | 10.0 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | 0.5 |  |  |  | 0.5 |
Stock-based compensation expense | 13.6 |  |  |  |  |
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition | 13.6 |  | 13.6 |  |  |
Stock Issued During Period, Value, Treasury Stock Reissued | 1.6 |  | (6.7) |  |  | $ 8.3
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  |  |  |  | (300,000)
Treasury Stock, Shares, Acquired |  |  |  |  |  | 1,800,000
Treasury Stock, Value, Acquired, Cost Method | (368.8) |  |  |  |  | $ (368.8)
Ending balance at Jun. 30, 2018 | (180.2) | 0.9 | 1,068.4 | 1,722.8 | (181.0) | $ (2,791.3)
Treasury Stock, Shares |  |  |  |  |  | 45,900,000
Beginning balance at Mar. 31, 2018 | (102.6) | 0.9 | 1,036.7 | 1,609.6 | (181.3) | $ (2,568.5)
Cumulative Effect on Retained Earnings, Net of Tax | 1.4 |  |  | 1.4 |  |
Net income | 137.6 |  |  | 137.6 |  |
Dividends, Common Stock, Cash | (25.8) |  |  | (25.8) |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent | (2.5) |  |  |  | (2.5) |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | 2.1 |  |  |  | 2.1 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | 0.7 |  |  |  | 0.7 |
Stock-based compensation expense | 8.8 |  |  |  |  |
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition | 8.8 |  | 8.8 |  |  |
Stock Issued During Period, Value, Treasury Stock Reissued | 0.8 |  | $ 0.4 |  |  | $ 0.4
Treasury Stock, Shares, Acquired |  |  | 22,500,000 |  |  | 1,000,000.0
Treasury Stock, Value, Acquired, Cost Method | (200.7) |  |  |  |  | $ (223.2)
Ending balance at Jun. 30, 2018 | $ (180.2) | 0.9 | $ 1,068.4 | 1,722.8 | (181.0) | $ (2,791.3)
Treasury Stock, Shares |  |  |  |  |  | 46,900,000
Treasury Stock, Shares | 47,312,248 |  |  |  |  | 47,300,000
Beginning balance at Dec. 31, 2018 | $ (149.6) | 0.9 | 1,078.8 | 1,855.0 | (188.8) | $ (2,895.5)
Cumulative Effect on Retained Earnings, Net of Tax | (0.3) |  |  | (0.3) |  |
Net income | 180.0 |  |  | 180.0 |  |
Dividends, Common Stock, Cash | (55.3) |  |  | (55.3) |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent | 3.6 |  |  |  | 3.6 |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | 6.0 |  |  |  | 6.0 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | 49.6 |  |  |  | 49.6 |
Stock-based compensation expense | 11.4 |  |  |  |  |
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition | 11.4 |  | 11.4 |  |  |
Stock Issued During Period, Value, Treasury Stock Reissued | 1.6 |  | (4.4) |  |  | $ 6.0
Stock Issued During Period, Shares, Treasury Stock Reissued |  |  |  |  |  | (200,000)
Treasury Stock, Shares, Acquired |  |  |  |  |  | 1,000,000.0
Treasury Stock, Value, Acquired, Cost Method | (264.5) |  |  |  |  | $ (264.5)
Ending balance at Jun. 30, 2019 | (217.5) | 0.9 | 1,085.8 | 1,979.4 | (129.6) | $ (3,154.0)
Treasury Stock, Shares |  |  |  |  |  | 47,600,000
Beginning balance at Mar. 31, 2019 | (204.8) | 0.9 | 1,079.4 | 1,898.7 | (180.2) | $ (3,003.6)
Net income | 110.7 |  |  | 110.7 |  |
Dividends, Common Stock, Cash | (30.0) |  |  | (30.0) |  |
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax, Portion Attributable to Parent | (2.6) |  |  |  | (2.6) |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent | 3.4 |  |  |  | 3.4 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | 49.8 |  |  |  | 49.8 |
Stock-based compensation expense | 6.1 |  |  |  |  |
Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition | 6.1 |  | 6.1 |  |  |
Stock Issued During Period, Value, Treasury Stock Reissued | 0.9 |  | 0.3 |  |  | $ 0.6
Treasury Stock, Shares, Acquired |  |  |  |  |  | 500,000
Treasury Stock, Value, Acquired, Cost Method | (151.0) |  |  |  |  | $ (151.0)
Ending balance at Jun. 30, 2019 | $ (217.5) | $ 0.9 | $ 1,085.8 | $ 1,979.4 | $ (129.6) | $ (3,154.0)
Treasury Stock, Shares | 47,609,360 |  |  |  |  | 48,100,000

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