Employee Benefit Plans (Details 5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension plans
Employee Benefit Plans
Non-funded plan, current underfunded status	$ 142.6
Change in plan assets:
Fair value of plan assets - end of year	1,213.8	1,115.2
Domestic Pension Plans
Change in benefit obligation:
Benefit obligation - beginning of year:	1,193.5	1,148.3
Service cost	9.8	9.9	9.3
Interest cost	54.4	57.4	61.1
Actuarial losses (gains)	170.6	53.0
Curtailment gain	(4.0)	(0.1)
Acquisitions		1.0
Benefits paid	(78.5)	(76.0)
Benefit obligation - end of year:	1,345.8	1,193.5	1,148.3
Change in plan assets:
Fair value of plan assets - beginning of year	868.2	867.5
Return on plan assets	107.1	71.8
Benefits paid	(78.5)	(76.0)
Contributions (employer and employee)	40.0	4.2
Acquisitions		0.7
Fair value of plan assets - end of year	936.8	868.2	867.5
Funded status at year-end	(409.0)	(325.3)
Amounts recognized in the consolidated balance sheets consist of:
Accrued expenses	(5.9)	(6.4)
Other long-term liabilities	(403.1)	(318.9)
Net amount recognized	(409.0)	(325.3)
Amounts recognized in accumulated other comprehensive loss (pre-tax) consist of:
Net actuarial loss	710.8	616.4
Net prior service costs (credits)	(0.1)	(0.7)
Total accumulated comprehensive loss (pre-tax)	710.7	615.7
Foreign Pension Plans
Change in benefit obligation:
Benefit obligation - beginning of year:	280.4	254.5
Service cost	2.5	2.5
Interest cost	14.3	14.0
Employee contributions	0.2	0.2
Actuarial losses (gains)	26.3	9.6
Curtailment gain		(0.1)
Acquisitions		16.1
Benefits paid	(11.6)	(13.7)
Foreign exchange and other	10.9	(2.7)
Benefit obligation - end of year:	323.0	280.4
Change in plan assets:
Fair value of plan assets - beginning of year	247.0	227.8
Return on plan assets	19.2	12.0
Benefits paid	(11.6)	(13.7)
Contributions (employer and employee)	10.6	10.9
Acquisitions		11.8
Foreign exchange and other	9.5	(1.8)
Fair value of plan assets - end of year	277.0	247.0
Funded status at year-end	(46.0)	(33.4)
Amounts recognized in the consolidated balance sheets consist of:
Other assets	24.9	23.7
Accrued expenses	(2.6)	(2.3)
Other long-term liabilities	(68.3)	(54.8)
Net amount recognized	(46.0)	(33.4)
Amounts recognized in accumulated other comprehensive loss (pre-tax) consist of:
Net actuarial loss	76.0	51.3
Net prior service costs (credits)	(0.1)	0.1
Total accumulated comprehensive loss (pre-tax)	75.9	51.4
Postretirement Plans
Change in benefit obligation:
Benefit obligation - beginning of year:	148.7	152.5
Service cost	0.5	0.4	0.3
Interest cost	6.1	7.0	8.0
Actuarial losses (gains)	7.2	(3.9)
Acquisitions		7.0
Benefits paid	(13.8)	(14.3)
Benefit obligation - end of year:	148.7	148.7	152.5
Change in plan assets:
Benefits paid	(13.8)	(14.3)
Funded status at year-end	(148.7)	(148.7)
Amounts recognized in the consolidated balance sheets consist of:
Accrued expenses	(14.6)	(15.7)
Other long-term liabilities	(134.1)	(133.0)
Net amount recognized	(148.7)	(148.7)
Amounts recognized in accumulated other comprehensive loss (pre-tax) consist of:
Net actuarial loss	48.6	44.9
Net prior service costs (credits)	(1.7)	(3.1)
Total accumulated comprehensive loss (pre-tax)	$ 46.9	$ 41.8