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CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Statement of Other Comprehensive Income [Abstract] |  |  |  |
Net (loss) | $ (40.9) | $ (92.0) | $ (42.9) | $ (120.8)
Gain arising during the period (Note 11) | 138.3 | 0 | 138.3 | 0
Amortization of actuarial (gains) losses, net (Note 11) | 6.1 | 6.0 | 12.9 | 12.0
Amortization of prior service costs (Note 11) | 0.5 | 0.4 | 0.7 | 0.8
Other comprehensive income, before tax | 144.9 | 6.4 | 151.9 | 12.8
Income tax expense related to items of other comprehensive income | (53.9) | (2.3) | (56.5) | (4.6)
Other comprehensive income, net of tax | 91.0 | 4.1 | 95.4 | 8.2
Comprehensive income (loss) | $ 50.1 | $ (87.9) | $ 52.5 | $ (112.6)

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