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STATEMENTS OF CHANGES IN CONSOLIDATED EQUITY - USD ($) $ in Millions | Total | [CommonStockMember] | [AdditionalPaidInCapitalMember] | [RetainedEarningsMember] | [TreasuryStockMember] | [AccumulatedOtherComprehensiveIncomeMember] | [NoncontrollingInterestMember]
--- | --- | --- | --- | --- | --- | --- | ---
Total Stockholders' Equity at Dec. 31, 2018 | $ 1,991.6 | $ 12.7 | $ 1,615.4 | $ 1,422.0 | $ (30.6) | $ (1,133.8) | $ 105.9
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 16.3 |  |  | 15.0 |  |  | 1.3
Other comprehensive income (loss) | 43.5 |  |  |  |  | 38.3 | 5.2
Employee stock plans | (4.8) |  | (15.7) | 0.0 | 10.9 |  |
Total Stockholders' Equity at Mar. 31, 2019 | 2,046.6 | 12.7 | 1,599.7 | 1,437.0 | (19.7) | (1,095.5) | 112.4
Total Stockholders' Equity at Dec. 31, 2019 | 2,193.2 | 12.7 | 1,618.0 | 1,679.3 | (18.2) | (1,201.7) | 103.1
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income | 23.6 |  |  | 21.1 |  |  | 2.5
Other comprehensive income (loss) | (15.7) |  |  |  |  | (14.9) | (0.8)
Employee stock plans | (8.5) |  | (25.9) | 0.0 | 17.4 |  |
Total Stockholders' Equity at Mar. 31, 2020 | $ 2,192.6 | $ 12.7 | $ 1,592.1 | $ 1,700.4 | $ (0.8) | $ (1,216.6) | $ 104.8

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