Retirement Benefit Plans (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Amounts recognized on the Consolidated Balance Sheets:
Non-current assets	$ 342.6	$ 0.2
Pension Plan, Defined Benefit [Member]
Amounts recognized on the Consolidated Balance Sheets:
Non-current assets	342.6	0.3
Current liabilities	(6.5)	(6.8)
Non-current liabilities	(179.0)	(391.4)
Total	$ 157.1	$ (397.9)