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Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Other comprehensive income (loss), pension and other postretirement benefit plans, tax $ (0.1) $ (0.2) $ (2.8) $ (2.6)