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CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY (USD $) In Millions, unless otherwise specified | Total | Common shareholders' equity. | Common shares and paid-in surplus | Retained earnings | Accum. Other comprehensive income (loss),after-tax | Non-controlling interest
--- | --- | --- | --- | --- | --- | ---
Balances at Dec. 31, 2010 |  | $ 3,653.0 | $ 1,359.0 | $ 2,175.6 | $ 118.4 | $ 607.8
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |
Net income (loss) | (11.1) | (32.3) | 0 | (32.3) | 0 | 21.2
Other comprehensive income, after-tax |  | 52.0 | 0 | 0 | 52.0 | 0
Dividends declared on common shares |  | (8.0) | 0 | (8.0) | 0 | 0
Dividends to noncontrolling interests |  | 0 | 0 | 0 | 0 | (47.2)
Repurchases and retirements of common shares | (93.2) | (229.8) | (98.5) | (131.3) | 0 | 0
Issuances of common shares |  | 0.9 | 0.9 | 0 | 0 | 0
Net distributions to noncontrolling interests |  | 0 | 0 | 0 | 0 | (7.7)
Amortization of restricted share and option awards |  | 8.9 | 8.9 | 0 | 0 | 0.3
Balances at Sep. 30, 2011 |  | 3,444.7 | 1,270.3 | 2,004.0 | 170.4 | 574.4
Balances at Dec. 31, 2011 | 4,667.9 | 4,087.7 | 1,261.3 | 2,789.7 | 36.7 | 580.2
Increase (Decrease) in Shareholders' Equity |  |  |  |  |  |
Net income (loss) | 137.2 | 139.2 | 0 | 139.2 | 0 | (2.0)
Other comprehensive income, after-tax |  | 93.0 | 0 | 0 | 93.0 | (0.4)
Dividends declared on common shares |  | (6.6) | 0 | (6.6) | 0 | 0
Dividends to noncontrolling interests |  | 0 | 0 | 0 | 0 | (24.5)
Repurchases and retirements of common shares | (107.6) | (517.5) | (172.6) | (344.9) | 0 | 0
Issuances of common shares |  | 5.8 | 5.8 | 0 | 0 | 0
Net distributions to noncontrolling interests |  | 0 | 0 | 0 | 0 | 13.0
Amortization of restricted share and option awards |  | 9.9 | 9.9 | 0 | 0 | 0.6
Fair Value of Net Assets Acquired |  | (2.2) | (2.2) | 0 | 0 | 2.2
Balances at Sep. 30, 2012 | $ 4,378.4 | $ 3,809.3 | $ 1,102.2 | $ 2,577.4 | $ 129.7 | $ 569.1

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