XML 105 R86.htm IDEA: XBRL DOCUMENT v3.3.1.900
Pension Plans and Other Postretirement Benefits (Details 10) - Pension Benefits [Member] - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligation $ 2,805.9 $ 2,953.9
Accumulated benefit obligation 2,767.0 2,917.3
Fair value of plan assets $ 1,962.3 $ 2,204.4