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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Statement of Comprehensive Income [Abstract] |  |  |
Net income attributable to White Mountains’s common shareholders (3) | $ 627.2 | $ 401.8 | $ 295.2
Other comprehensive income, net of tax: |  |  |
Other comprehensive income (loss), net of tax | 0.3 | (0.7) | (42.8)
Comprehensive income (loss) from discontinued operations, net of tax | 3.2 | 146.3 | (65.0)
Comprehensive income | 630.7 | 547.4 | 187.4
Comprehensive (income) loss attributable to non-controlling interests | (0.2) | (0.3) | 0.0
Comprehensive income attributable to White Mountains’s common shareholders | $ 630.5 | $ 547.1 | $ 187.4
Basic earnings per share |  |  |
Continuing operations | $ 11.56 | $ (24.26) | $ 27.22
Discontinued operations | 134.50 | 104.37 | 22.98
Total consolidated operations | 146.06 | 80.11 | 50.20
Diluted earnings per share |  |  |
Continuing operations | 11.56 | (24.26) | 27.22
Discontinued operations | 134.50 | 104.32 | 22.98
Total consolidated operations | 146.06 | 80.06 | 50.20
Dividends declared and paid per White Mountains’s common share | $ 1 | $ 1 | $ 1

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