Retirement Benefit I (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Pension Benefits [Member]
Change in benefit obligation [Rollforward]
Benefit Obligation Beginning	$ 879.5	$ 832.4
Service cost	16.7	16.0	13.6
Interest cost	36.5	36.5	38.1
Defined Benefit Plan, Contributions by Plan Participants	0.7	0.7
Amendments	0.4	0
Actuarial loss (gain)	(69.2)	24.2
Currency impact	0.3	3.9
Defined Benefit Plan Other	(0.5)	(0.5)
Benefits paid change in obligation	(36.2)	(33.7)
Benefit Obligation Ending	828.2	879.5	832.4
Other Benefits [Member]
Change in benefit obligation [Rollforward]
Benefit Obligation Beginning	30.4	33.7
Service cost	0	0	0
Interest cost	1.1	1.3	1.6
Defined Benefit Plan, Contributions by Plan Participants	0	0
Amendments	0	0
Actuarial loss (gain)	(1.4)	(2.4)
Currency impact	0	0
Defined Benefit Plan Other	(0.1)	0
Benefits paid change in obligation	(1.9)	(2.2)
Benefit Obligation Ending	$ 28.1	$ 30.4	$ 33.7