Employee Benefit Plans (Reconciliation of Benefit Obligations, Plan Assets and Funded Status) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Amount Recognized in Balance Sheet:
Other assets	$ 1,052.0	$ 1,375.3
Accrued compensation	(210.5)	(271.2)
Pension Benefits U.S. Plans [Member]
Change in Benefit Obligation:
Beginning balance	(668.3)	(792.7)
Service cost	(14.1)	(15.7)	(15.1)
Interest cost	(27.8)	(27.5)	(29.6)
Actuarial gain (loss)	(124.6)	58.4
Plan participant contributions	0	0
Benefits paid	129.1	109.2
Plan amendments	2.0	0
Curtailments	(1.4)	0
Settlements	0	0
Special termination benefits	(0.1)	0
Foreign currency changes and other	0	0
Ending balance	(705.2)	(668.3)	(792.7)
Change in Plan Assets:
Beginning balance	531.1	529.2
Actual return on plan assets	54.5	59.8
Company contributions	50.0	51.3
Plan participant contributions	0	0
Benefits paid	(129.1)	(109.2)
Foreign currency changes and other	0	0
Ending balance	506.5	531.1	529.2
Funded Status:
Funded status at end of year	(198.7)	(137.2)
Amount Recognized in Balance Sheet:
Other assets	0	0
Accrued compensation	(9.0)	(10.3)
Employee benefit plans liability	(189.7)	(126.9)
Net amount recognized	(198.7)	(137.2)
Pretax Amounts Recognized in Accumulated Other Comprehensive Loss:
Net actuarial loss	380.0	355.6
Prior service credit	(2.1)	(0.4)
Total pretax amount recognized	377.9	355.2
Supplemental Information:
Accumulated benefit obligation	701.6	663.6
Plans with Projected Benefit Obligation in Excess of Plan Assets:
Projected benefit obligation	705.2	668.3
Fair value plan assets	506.5	531.1
Plans with Accumulated Benefit Obligation in Excess of Plan Assets:
Projected benefit obligation	705.2	668.3
Accumulated benefit obligation	701.6	663.6
Fair value plan assets	506.5	531.1
Pension Benefits Non-U.S. Plans [Member]
Change in Benefit Obligation:
Beginning balance	(863.7)	(838.5)
Service cost	(8.5)	(12.2)	(18.0)
Interest cost	(36.5)	(36.8)	(39.8)
Actuarial gain (loss)	(137.3)	(21.0)
Plan participant contributions	(0.4)	(0.7)
Benefits paid	53.1	44.8
Plan amendments	0	0
Curtailments	0	1.5
Settlements	0.7	0
Special termination benefits	0	0
Foreign currency changes and other	82.4	(0.8)
Ending balance	(910.2)	(863.7)	(838.5)
Change in Plan Assets:
Beginning balance	715.0	609.3
Actual return on plan assets	81.4	76.4
Company contributions	31.4	67.4
Plan participant contributions	0.4	0.7
Benefits paid	(53.1)	(44.8)
Foreign currency changes and other	(55.1)	6.0
Ending balance	720.0	715.0	609.3
Funded Status:
Funded status at end of year	(190.2)	(148.7)
Amount Recognized in Balance Sheet:
Other assets	2.7	2.7
Accrued compensation	(3.9)	(4.0)
Employee benefit plans liability	(189.0)	(147.4)
Net amount recognized	(190.2)	(148.7)
Pretax Amounts Recognized in Accumulated Other Comprehensive Loss:
Net actuarial loss	338.9	283.4
Prior service credit	(1.4)	(0.7)
Total pretax amount recognized	337.5	282.7
Supplemental Information:
Accumulated benefit obligation	860.5	807.9
Plans with Projected Benefit Obligation in Excess of Plan Assets:
Projected benefit obligation	902.6	853.3
Fair value plan assets	709.6	701.9
Plans with Accumulated Benefit Obligation in Excess of Plan Assets:
Projected benefit obligation	883.3	832.6
Accumulated benefit obligation	850.8	797.5
Fair value plan assets	696.1	687.5
Postretirement Benefits [Member]
Change in Benefit Obligation:
Beginning balance	(111.1)	(138.1)
Service cost	(1.1)	(1.8)	(1.9)
Interest cost	(4.9)	(5.1)	(5.8)
Actuarial gain (loss)	(3.6)	22.9
Plan participant contributions	(2.8)	(2.9)
Benefits paid	10.0	10.5
Plan amendments	0	1.3
Curtailments	0.3	0.9
Settlements	0	0
Special termination benefits	(0.2)	(0.5)
Foreign currency changes and other	1.7	1.7
Ending balance	(111.7)	(111.1)	(138.1)
Change in Plan Assets:
Beginning balance	0	0
Actual return on plan assets	0	0
Company contributions	7.2	7.6
Plan participant contributions	2.8	2.9
Benefits paid	(10.0)	(10.5)
Foreign currency changes and other	0	0
Ending balance	0	0	0
Funded Status:
Funded status at end of year	(111.7)	(111.1)
Amount Recognized in Balance Sheet:
Other assets	0	0
Accrued compensation	(8.7)	(8.8)
Employee benefit plans liability	(103.0)	(102.3)
Net amount recognized	(111.7)	(111.1)
Pretax Amounts Recognized in Accumulated Other Comprehensive Loss:
Net actuarial loss	27.5	26.0
Prior service credit	(24.8)	(32.4)
Total pretax amount recognized	$ 2.7	$ (6.4)