Employee Benefit Plans (Reconciliation of Benefit Obligations, Plan Assets and Funded Status) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Other assets	$ 1,311.7	$ 1,018.6
Accrued compensation	217.1	293.2
Employee benefit plans liability	69.5	67.1
Pension Benefits U.S. Plans [Member]
Beginning balance	(702.6)	(702.2)
Service cost	(12.8)	(11.9)	(11.7)
Interest cost	(32.6)	(35.6)	(40.4)
Actuarial (loss) gain	(89.9)	(44.4)
Plan participant contributions	0	0
Benefits paid	83.9	92.6
Plan amendments	0	0.2
Curtailments	0.3	(1.3)
Special termination benefits	0	0
Foreign currency changes and other	0	0
Ending balance	(753.7)	(702.6)	(702.2)
Beginning balance	451.7	470.6
Actual return on plan assets	37.0	60.3
Company contributions	88.6	13.4
Plan participant contributions	0	0
Benefits paid	(83.9)	(92.6)
Foreign currency changes and other	0	0
Ending balance	493.4	451.7	470.6
Funded status at end of year	(260.3)	(250.9)
Other assets	0	0
Accrued compensation	(7.9)	(9.8)
Employee benefit plans liability	(252.4)	(241.1)
Net amount recognized	(260.3)	(250.9)
Net actuarial loss	489.6	445.8
Prior service credit	(1.0)	(1.3)
Transition obligation	0	0
Total pretax amount recognized	488.6	444.5
Accumulated benefit obligation	737.3	685.2
Projected benefit obligation	753.7	702.6
Fair value plan assets	493.4	451.7
Projected benefit obligation	753.7	702.6
Accumulated benefit obligation	737.3	685.2
Fair value plan assets	493.4	451.7
Pension Benefits Non-U.S. Plans [Member]
Beginning balance	(720.3)	(711.3)
Service cost	(15.4)	(14.6)	(12.2)
Interest cost	(39.7)	(39.3)	(38.6)
Actuarial (loss) gain	(21.5)	(16.2)
Plan participant contributions	(2.5)	(2.5)
Benefits paid	42.1	40.1
Plan amendments	4.6	0
Curtailments	0	0
Special termination benefits	0	(0.1)
Foreign currency changes and other	6.0	23.6
Ending balance	(746.7)	(720.3)	(711.3)
Beginning balance	540.6	499.5
Actual return on plan assets	(0.1)	56.9
Company contributions	38.4	32.9
Plan participant contributions	2.5	2.5
Benefits paid	(42.1)	(40.1)
Foreign currency changes and other	(2.9)	(11.1)
Ending balance	536.4	540.6	499.5
Funded status at end of year	(210.3)	(179.7)
Other assets	2.7	3.0
Accrued compensation	(12.7)	(12.6)
Employee benefit plans liability	(200.3)	(170.1)
Net amount recognized	(210.3)	(179.7)
Net actuarial loss	294.6	250.0
Prior service credit	(14.9)	(12.3)
Transition obligation	0.2	0.3
Total pretax amount recognized	279.9	238.0
Accumulated benefit obligation	675.9	653.4
Projected benefit obligation	730.2	702.8
Fair value plan assets	517.1	520.2
Projected benefit obligation	720.1	693.3
Accumulated benefit obligation	675.9	653.4
Fair value plan assets	508.6	511.6
Postretirement Benefits [Member]
Beginning balance	(133.0)	(134.6)
Service cost	(2.0)	(2.0)	(3.2)
Interest cost	(6.4)	(7.1)	(9.9)
Actuarial (loss) gain	(1.9)	2.1
Plan participant contributions	(4.0)	(4.3)
Benefits paid	14.1	13.5
Plan amendments	0	0
Curtailments	(0.2)	0
Special termination benefits	0	0
Foreign currency changes and other	1.1	(0.6)
Ending balance	(132.3)	(133.0)	(134.6)
Beginning balance	43.7	39.6
Actual return on plan assets	(1.1)	4.1
Company contributions	10.1	9.2
Plan participant contributions	4.0	4.3
Benefits paid	(14.1)	(13.5)
Foreign currency changes and other	0	0
Ending balance	42.6	43.7	39.6
Funded status at end of year	(89.7)	(89.3)
Other assets	0	0
Accrued compensation	(4.6)	(4.3)
Employee benefit plans liability	(85.1)	(85.0)
Net amount recognized	(89.7)	(89.3)
Net actuarial loss	52.3	50.8
Prior service credit	(53.0)	(70.2)
Transition obligation	0	0
Total pretax amount recognized	$ (0.7)	$ (19.4)