Employee Benefit Plans (Reconciliation of Benefit Obligations, Plan Assets and Funded Status) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Other assets	$ 1,408.2	$ 1,311.7
Accrued compensation	266.6	217.1
Pension Benefits U.S. Plans [Member]
Beginning balance	(753.7)	(702.6)
Service cost	(15.1)	(12.8)	(11.9)
Interest cost	(29.6)	(32.6)	(35.6)
Actuarial (loss) gain	(68.7)	(89.9)
Plan participant contributions	0	0
Benefits paid	75.2	83.9
Plan amendments	0	0
Curtailments	(0.4)	0.3
Special termination benefits	(0.4)	0
Foreign currency changes and other	0	0
Ending balance	(792.7)	(753.7)	(702.6)
Beginning balance	493.4	451.7
Actual return on plan assets	67.0	37.0
Company contributions	44.0	88.6
Plan participant contributions	0	0
Benefits paid	(75.2)	(83.9)
Foreign currency changes and other	0	0
Ending balance	529.2	493.4	451.7
Funded status at end of year	(263.5)	(260.3)
Other assets	0	0
Accrued compensation	(23.1)	(7.9)
Employee benefit plans liability	(240.4)	(252.4)
Net amount recognized	(263.5)	(260.3)
Net actuarial loss	483.6	489.6
Prior service credit	(0.7)	(1.0)
Transition obligation	0	0
Total pretax amount recognized	482.9	488.6
Accumulated benefit obligation	776.5	737.3
Projected benefit obligation	792.7	753.7
Fair value plan assets	529.2	493.4
Projected benefit obligation	792.7	753.7
Accumulated benefit obligation	776.5	737.3
Fair value plan assets	529.2	493.4
Pension Benefits Non-U.S. Plans [Member]
Beginning balance	(746.7)	(720.3)
Service cost	(18.0)	(15.4)	(14.6)
Interest cost	(39.8)	(39.7)	(39.3)
Actuarial (loss) gain	(49.6)	(21.5)
Plan participant contributions	(2.3)	(2.5)
Benefits paid	48.7	42.1
Plan amendments	(4.8)	4.6
Curtailments	1.2	0
Special termination benefits	0	0
Foreign currency changes and other	(27.2)	6.0
Ending balance	(838.5)	(746.7)	(720.3)
Beginning balance	536.4	540.6
Actual return on plan assets	57.7	(0.1)
Company contributions	40.7	38.4
Plan participant contributions	2.3	2.5
Benefits paid	(48.7)	(42.1)
Foreign currency changes and other	20.9	(2.9)
Ending balance	609.3	536.4	540.6
Funded status at end of year	(229.3)	(210.3)
Other assets	2.0	2.7
Accrued compensation	(2.5)	(12.7)
Employee benefit plans liability	(228.8)	(200.3)
Net amount recognized	(229.3)	(210.3)
Net actuarial loss	314.8	294.6
Prior service credit	(8.2)	(14.9)
Transition obligation	0.2	0.2
Total pretax amount recognized	306.8	279.9
Accumulated benefit obligation	768.5	680.9
Projected benefit obligation	822.6	730.2
Fair value plan assets	591.3	517.1
Projected benefit obligation	809.4	720.1
Accumulated benefit obligation	761.9	675.9
Fair value plan assets	581.5	508.6
Postretirement Benefits [Member]
Beginning balance	(132.3)	(133.0)
Service cost	(1.9)	(2.0)	(2.0)
Interest cost	(5.8)	(6.4)	(7.1)
Actuarial (loss) gain	(7.4)	(1.9)
Plan participant contributions	(3.3)	(4.0)
Benefits paid	12.6	14.1
Plan amendments	0	0
Curtailments	(0.2)	(0.2)
Special termination benefits	(0.2)	0
Foreign currency changes and other	0.4	1.1
Ending balance	(138.1)	(132.3)	(133.0)
Beginning balance	42.6	43.7
Actual return on plan assets	2.7	(1.1)
Company contributions	(36.0)	10.1
Plan participant contributions	3.3	4.0
Benefits paid	(12.6)	(14.1)
Foreign currency changes and other	0	0
Ending balance	0	42.6	43.7
Funded status at end of year	(138.1)	(89.7)
Other assets	0	0
Accrued compensation	(9.4)	(4.6)
Employee benefit plans liability	(128.7)	(85.1)
Net amount recognized	(138.1)	(89.7)
Net actuarial loss	52.6	52.3
Prior service credit	(38.3)	(53.0)
Transition obligation	0	0
Total pretax amount recognized	$ 14.3	$ (0.7)