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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Millions, $ in Millions | Total | Common Stock | Additional Paid-In Capital | Accumulated Other Comprehensive Income (Loss) | Retained Earnings | Treasury Stock at Cost | Non- controlling Interests
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at Dec. 31, 2017 |  | 58.5 |  |  |  |  |
Beginning Balance at Dec. 31, 2017 | $ 4,578.5 | $ 0.6 | $ 808.6 | $ (21.8) | $ 3,698.5 | $ (663.7) | $ 756.3
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income (loss) | 224.0 |  |  |  | 153.0 |  | 71.0
Other comprehensive income | 29.4 |  |  | 20.9 |  |  | 8.5
Share-based compensation | 10.7 |  | 10.7 |  |  |  |
Common stock issued under share-based incentive plans | (9.5) |  | (2.2) |  |  | (7.3) |
Share repurchases | (150.8) |  |  |  |  | (150.8) |
Dividends ($0.30 per share and $0.32 per share) | (16.6) |  |  |  | (16.6) |  |
Affiliate equity activity: |  |  |  |  |  |  |
Affiliate equity compensation | 19.4 |  | 2.6 |  |  |  | 16.8
Issuances | 7.0 |  | (1.4) |  |  |  | 8.4
Repurchases | 14.4 |  | 14.4 |  |  |  |
Changes in redemption value of Redeemable non-controlling interests | (168.5) |  | (168.5) |  |  |  |
Transfers to Redeemable non-controlling interests | (4.9) |  |  |  |  |  | (4.9)
Capital contributions by Affiliate equity holders | 1.9 |  |  |  |  |  | 1.9
Distributions to non-controlling interests | (112.4) |  |  |  |  |  | (112.4)
Ending Balance (in shares) at Mar. 31, 2018 |  | 58.5 |  |  |  |  |
Ending Balance at Mar. 31, 2018 | $ 4,422.6 | $ 0.6 | 664.2 | (0.9) | 3,834.9 | (821.8) | 745.6
Beginning Balance (in shares) at Dec. 31, 2018 | 58.5 | 58.5 |  |  |  |  |
Beginning Balance at Dec. 31, 2018 | $ 4,134.9 | $ 0.6 | 835.6 | (109.0) | 3,876.8 | (1,146.6) | 677.5
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |  |
Net income (loss) | (133.0) |  |  |  | (200.8) |  | 67.8
Other comprehensive income | 8.7 |  |  | 2.1 |  |  | 6.6
Share-based compensation | 8.8 |  | 8.8 |  |  |  |
Common stock issued under share-based incentive plans | (6.1) |  | (33.0) |  |  | 26.9 |
Share repurchases | (90.6) |  |  |  |  | (90.6) |
Dividends ($0.30 per share and $0.32 per share) | (16.8) |  |  |  | (16.8) |  |
Affiliate equity activity: |  |  |  |  |  |  |
Affiliate equity compensation | 10.7 |  | 2.2 |  |  |  | 8.5
Issuances | 10.1 |  | (0.9) |  |  |  | 11.0
Repurchases | 4.6 |  | 4.6 |  |  |  |
Changes in redemption value of Redeemable non-controlling interests | (12.9) |  | (12.9) |  |  |  |
Transfers to Redeemable non-controlling interests | (47.3) |  |  |  |  |  | (47.3)
Capital contributions by Affiliate equity holders | 0.4 |  |  |  |  |  | 0.4
Distributions to non-controlling interests | $ (104.6) |  |  |  |  |  | (104.6)
Ending Balance (in shares) at Mar. 31, 2019 | 58.5 | 58.5 |  |  |  |  |
Ending Balance at Mar. 31, 2019 | $ 3,760.3 | $ 0.6 | $ 804.4 | $ (106.9) | $ 3,652.6 | $ (1,210.3) | $ 619.9

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