Retirement Benefit Plans - Estimated Future Payments (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
With Medicare Part D Reimbursement Other Post Employment Benefits [Member]
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
2014	$ 19.5
2015	18.7
2016	17.7
2017	17.1
2018	16.6
2019-2023	65.6
U.S. Plans:
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
2014	24.0
2015	23.1
2016	23.0
2017	22.2
2018	22.4
2019-2023	103.2
Non-U.S. Plans:
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
2014	17.4
2015	20.7
2016	19.3
2017	20.6
2018	21.8
2019-2023	118.4
Without Medicare Part D Reimbursement Other Post Employment Benefits [Member]
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
2014	19.5
2015	18.7
2016	17.7
2017	17.1
2018	16.6
2019-2023	$ 65.6