Changes in AOCI (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Beginning Balance	$ (54.6)
Change in Other Comprehensive Income	(6.9)	18.4
Amounts reclassified from AOCI	0.2	9.1
Net current period other comprehensive income/(loss)	0	(2.0)
Ending Balance	(61.3)
Gains Losses On Cash Flow and Net Investment Hedges [Member]
Beginning Balance	1.5	(2.9)
Change in Other Comprehensive Income	(2.1)	3.7
Amounts reclassified from AOCI	0	0.7
Net current period other comprehensive income/(loss)	(2.1)	4.4
Ending Balance	(0.6)	1.5
Pension And Other Retirement Benefits [Member]
Beginning Balance	(53.2)	(90.1)
Change in Other Comprehensive Income	0	29.9
Amounts reclassified from AOCI	0.2	7.0
Net current period other comprehensive income/(loss)	0.2	36.9
Ending Balance	(53.0)	(53.2)
Foreign Currency Translation Adjustments [Member]
Beginning Balance	(2.9)	10.9
Change in Other Comprehensive Income	(4.8)	(15.2)
Amounts reclassified from AOCI	0	1.4
Net current period other comprehensive income/(loss)	(4.8)	(13.8)
Ending Balance	$ (7.7)	$ (2.9)