Benefit Plans (Details) $ in Millions	1 Months Ended		3 Months Ended		9 Months Ended
	Oct. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Nov. 01, 2015
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost			$ 2.4	$ 2.6	$ 8.0	$ 8.4
Interest cost			2.8	3.5	8.2	11.5
Expected return on assets			(3.1)	(4.9)	(9.5)	(16.3)
Defined Benefit Plan, Amortization of Transition Obligations (Assets)					0.1	0.1
Amortization of prior service credit			(0.3)	(0.3)	(1.0)	(1.0)
Recognized actuarial losses (gains)			1.0	1.2	2.6	3.7
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements			0.0	49.0	0.0	49.0
Net periodic benefit cost			2.8	51.1	8.4	55.4
Defined Benefit Plan, Settlements, Benefit Obligation				139.4
Defined Benefit Plan, Benefit Obligation		$ 313.6		313.6		313.6
Number of Employees & Beneficiaries Affected by Settlement							1,750
Defined Benefit Plan, Contributions by Employer	$ 13.7	$ 1.3
Pension Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost			2.3	2.5	7.6	8.0
Interest cost			2.7	3.4	7.9	11.2
Expected return on assets			(3.1)	(4.9)	(9.5)	(16.3)
Defined Benefit Plan, Amortization of Transition Obligations (Assets)					0.1	0.1
Amortization of prior service credit			(0.3)	(0.3)	(1.0)	(1.0)
Recognized actuarial losses (gains)			1.3	1.6	3.6	4.8
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements			0.0	49.0	0.0	49.0
Net periodic benefit cost			2.9	51.3	8.7	55.8
Other Retirement Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Service cost			0.1	0.1	0.4	0.4
Interest cost			0.1	0.1	0.3	0.3
Recognized actuarial losses (gains)			(0.3)	(0.4)	(1.0)	(1.1)
Net periodic benefit cost			(0.1)	(0.2)	(0.3)	(0.4)
U.S. Pension Benefit Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost			2.3	50.7	6.9	53.8
International Pension Benefit Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost			0.6	0.6	1.8	2.0
U.S. Other Retirement Benefit Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost			(0.1)	(0.2)	(0.3)	(0.4)
U.S. Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost			2.2	50.5	6.6	53.4
International Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Net periodic benefit cost			$ 0.6	$ 0.6	$ 1.8	$ 2.0