Saving Plans, Pension and Post Retirement Benefits - Aggregate Reconciliation of Projected Benefit Obligations, Plan Assets, Funded Status and Amounts Recognized (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Change in Benefit Obligation:
Curtailment gain		$ 1.7
Change in Plan Assets:
Fair value of plan assets - end of year	557.6	520.2
Pension Plans
Change in Benefit Obligation:
Benefit obligation - beginning of year	(744.6)	(700.5)
Service cost	(0.9)	(1.6)	(1.2)
Interest cost	(27.6)	(30.0)	(32.4)
Actuarial gain (loss)	65.5	(51.1)
Curtailment gain	0	1.7
Settlement gain	0	0.2
Benefits paid	39.1	39.0
Currency translation adjustments	(0.1)	(2.3)
Other	0.4	0
Benefit obligation - end of year	(668.2)	(744.6)	(700.5)
Change in Plan Assets:
Fair value of plan assets - beginning of year	520.2	463.8
Actual return on plan assets	58.1	64.2
Employer contributions	17.7	29.0
Benefits paid	(39.1)	(39.0)
Settlement gain	0	(0.2)
Currency translation adjustments	0.7	2.4
Fair value of plan assets - end of year	557.6	520.2	463.8
Unfunded status of plans at December 31,	(110.6)	(224.4)
Other Post-Retirement Benefit Plans
Change in Benefit Obligation:
Benefit obligation - beginning of year	(16.5)	(16.1)
Service cost	0	0	0
Interest cost	(0.6)	(0.7)	(0.9)
Actuarial gain (loss)	1.6	(0.5)
Curtailment gain	0	0
Settlement gain	0	0
Benefits paid	0.8	0.8
Currency translation adjustments	0.3	0
Other	0	0
Benefit obligation - end of year	(14.4)	(16.5)	(16.1)
Change in Plan Assets:
Fair value of plan assets - beginning of year	0	0
Actual return on plan assets	0	0
Employer contributions	0.8	0.8
Benefits paid	(0.8)	(0.8)
Settlement gain	0	0
Currency translation adjustments	0	0
Fair value of plan assets - end of year	0	0	0
Unfunded status of plans at December 31,	$ (14.4)	$ (16.5)