Pension and Other Post-Retirement Benefits (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Change in Fair Value of Plan Assets
Company contributions	$ 1.6	$ 1.6	$ 1.4
Plan assets at end of year	447.8
Amount Recognized
Other liabilities	(68.2)	(112.8)
Accumulative other comprehensive loss:
After-tax amount recognized in accumulated other comprehensive loss	78.2	131.1	118.7	99.9
Defined Benefit Pension [Member]
Change in Benefit Obligation
Benefit obligation at beginning of year	473.8	425.0
Service cost	6.7	5.7	5.4
Interest cost	18.4	19.7	20.7
Actuarial loss	(26.8)	49.2
Benefits paid	30.3	27.4
Effect of foreign exchange rate changes	0.9	1.6
Benefit obligation at end of year	442.7	473.8	425.0
Change in Fair Value of Plan Assets
Plan assets at beginning of year	409.1	377.5
Actual return on plan assets	65.9	55.3
Effect of exchange rate changes	0.7	1.6
Company contributions	2.4	2.1
Benefits paid	30.3	27.4
Plan assets at end of year	447.8	409.1	377.5
Funded Status at end of year	5.1	(64.7)
Amount Recognized
Other liabilities	(5.1)	64.7
Accumulative other comprehensive loss:
Net actuarial loss	(127.6)	(207.4)
Prior service credit (cost)	(3.1)	(4.1)
Accumulated other comprehensive loss	124.5	203.3
Total recognized	129.6	138.6
After-tax amount recognized in accumulated other comprehensive loss	77.6	126.8
Retiree Health and Life [Member]
Change in Benefit Obligation
Benefit obligation at beginning of year	48.1	44.8
Service cost	0.2	0.2	0.2
Interest cost	1.6	2.0	2.2
Actuarial loss	(6.2)	4.9
Benefits paid	3.3	3.8
Effect of foreign exchange rate changes	0	0
Benefit obligation at end of year	40.4	48.1	44.8
Change in Fair Value of Plan Assets
Plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Effect of exchange rate changes	0	0
Company contributions	3.3	3.8
Benefits paid	3.3	3.8
Plan assets at end of year	0	0	0
Funded Status at end of year	(40.4)	(48.1)
Amount Recognized
Other liabilities	40.4	48.1
Accumulative other comprehensive loss:
Net actuarial loss	(0.6)	(6.8)
Prior service credit (cost)	0.4	0.2
Accumulated other comprehensive loss	1.0	7.0
Total recognized	(39.4)	(41.1)
After-tax amount recognized in accumulated other comprehensive loss	$ 0.6	$ 4.3