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Annual report pursuant to Section 13 and 15(d)

ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Accumulated Other Comprehensive Income (Loss) and Related Tax Effects (Details)

v3.8.0.1
ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) Accumulated Other Comprehensive Income (Loss) and Related Tax Effects (Details) - USD ($)
$ in Millions
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss), Before Taxes $ (162.4) $ (144.7) $ (141.8) Ìý
Accumulated Other Comprehensive Income (Loss), Tax 123.4 123.4 123.8 Ìý
Accumulated other comprehensive loss (39.0) (21.3) (18.0) $ (245.8)
Postretirement Benefit Liability [Member] Ìý Ìý Ìý Ìý
Accumulated Other Comprehensive Income (Loss), Before Taxes (387.3) (384.0) (364.8) Ìý
Accumulated Other Comprehensive Income (Loss), Tax 123.4 123.4 123.4 Ìý
Accumulated other comprehensive loss (263.9) (260.6) (241.4) Ìý
Foreign Currency Translation Adjustment [Member] Ìý Ìý Ìý Ìý
Accumulated Other Comprehensive Income (Loss), Before Taxes 225.4 239.3 220.7 Ìý
Accumulated Other Comprehensive Income (Loss), Tax 0.0 0.0 0.0 Ìý
Accumulated other comprehensive loss 225.4 $ 239.3 220.7 Ìý
Unrealized Gain Loss On Derivatives [Member] Ìý Ìý Ìý Ìý
Accumulated Other Comprehensive Income (Loss), Before Taxes (0.5) Ìý 2.2 Ìý
Accumulated Other Comprehensive Income (Loss), Tax 0.0 Ìý 0.4 Ìý
Accumulated other comprehensive loss $ (0.5) Ìý 2.6 Ìý
Accumulated Net Unrealized Investment Gain (Loss) [Member] Ìý Ìý Ìý Ìý
Accumulated Other Comprehensive Income (Loss), Before Taxes Ìý Ìý 0.1 Ìý
Accumulated Other Comprehensive Income (Loss), Tax Ìý Ìý 0.0 Ìý
Accumulated other comprehensive loss Ìý Ìý $ 0.1 Ìý