Retirement Benefit Plans - Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
U.S. Plans:
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Interest cost	$ 11.2	$ 12.1	$ 11.6
Expected return on plan assets	(17.0)	(17.6)	(18.2)
Settlements, curtailments and other	25.7	3.1
Amortization of unrecognized prior service (credit) cost	(0.8)	(0.8)	(0.8)
Amortization of unrecognized loss	6.3	6.5	8.2
Net periodic benefit cost	25.4	3.3	0.8
Non-U.S. Plans:
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	14.9	12.8	12.4
Interest cost	14.1	18.1	16.6
Expected return on plan assets	(24.8)	(21.1)	(11.0)
Settlements, curtailments and other	(0.8)	0.7	0.2
Amortization of unrecognized prior service (credit) cost	0.1
Amortization of unrecognized loss	6.6	4.8	5.3
Net periodic benefit cost	10.1	15.3	23.5
U.S. other postretirement benefit plans [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	0.2	0.3	0.4
Interest cost	5.7	6.7	6.8
Amortization of unrecognized prior service (credit) cost	(5.7)	(6.4)	(6.4)
Amortization of unrecognized loss	3.1	2.7	4.9
Net periodic benefit cost	3.3	$ 3.3	$ 5.7
Other post employment plans amortization of net losses expected in the next year	2.1
Amortization of net prior service cost expected in the next year	4.8
Pension Plan [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Amortization of net (losses) expected in next year	$ 11.1