Employee Benefit Plans Expected Benefit Payments (Details) $ in Millions	Dec. 31, 2016 USD ($)
Pension Benefits, U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Benefit Payments in Year One	$ 71.8
Benefit Payments in Year Two	74.4
Benefit Payments in Year Three	76.9
Benefit Payments in Year Four	80.6
Benefit Payments in Year Five	84.3
Benefit Payments in Five Fiscal Years Thereafter	476.9
Pension Benefits, Non U.S. Plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Benefit Payments in Year One	4.5
Benefit Payments in Year Two	4.8
Benefit Payments in Year Three	4.8
Benefit Payments in Year Four	5.1
Benefit Payments in Year Five	5.4
Benefit Payments in Five Fiscal Years Thereafter	32.5
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans
Benefit Payments in Year One	13.6
Prescription Drug Subsidy Receipts in Year One	0.3
Net OPEB Payments in Year One	13.3
Benefit Payments in Year Two	13.2
Prescription Drug Subsidy Receipts in Year Two	0.2
Net OPEB Payments in Year Two	13.0
Benefit Payments in Year Three	12.8
Prescription Drug Subsidy Receipts in Year Three	0.2
Net OPEB Payments in Year Three	12.6
Benefit Payments in Year Four	12.3
Prescription Drug Subsidy Receipts in Year Four	0.2
Net OPEB Payments in Year Four	12.1
Benefit Payments in Year Five	11.9
Prescription Drug Subsidy Receipts in Year Five	0.2
Net OPEB Payments in Year Five	11.7
Benefit Payments in Five Fiscal Years Thereafter	50.9
Prescription Drug Subsidy Receipts in Five Fiscal Years Thereafter	0.7
Net OPEB Payments in Five Fiscal Years Thereafter	$ 50.2