Employee Benefit Plans (Fair Value Hierarchy for Pension and Postretirement Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Level 3 [Member]
Fair value of plan assets	$ 15.9	$ 15.4	$ 14.2
U.S. Pension and Postretirement Plans [Member]
Fair value of plan assets	536.0	495.4
U.S. Pension and Postretirement Plans [Member] | Domestic Equity [Member]
Fair value of plan assets	193.3	148.2
U.S. Pension and Postretirement Plans [Member] | International Equity [Member]
Fair value of plan assets	64.4	73.8
U.S. Pension and Postretirement Plans [Member] | Emerging Markets [Member]
Fair value of plan assets	42.7	31.1
U.S. Pension and Postretirement Plans [Member] | Total Equity Securities [Member]
Fair value of plan assets	300.4	253.1
U.S. Pension and Postretirement Plans [Member] | Corporate Bonds [Member]
Fair value of plan assets	180.7	188.7
U.S. Pension and Postretirement Plans [Member] | Government Securities [Member]
Fair value of plan assets	53.3	52.9
U.S. Pension and Postretirement Plans [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	234.0	241.6
U.S. Pension and Postretirement Plans [Member] | Cash [Member]
Fair value of plan assets	1.6	0.7
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member]
Fair value of plan assets	1.6	0.7
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member] | Domestic Equity [Member]
Fair value of plan assets	0	0
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member] | International Equity [Member]
Fair value of plan assets	0	0
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member] | Emerging Markets [Member]
Fair value of plan assets	0	0
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member] | Total Equity Securities [Member]
Fair value of plan assets	0	0
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member] | Corporate Bonds [Member]
Fair value of plan assets	0	0
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member] | Government Securities [Member]
Fair value of plan assets	0	0
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	0	0
U.S. Pension and Postretirement Plans [Member] | Level 1 [Member] | Cash [Member]
Fair value of plan assets	1.6	0.7
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member]
Fair value of plan assets	534.4	494.7
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member] | Domestic Equity [Member]
Fair value of plan assets	193.3	148.2
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member] | International Equity [Member]
Fair value of plan assets	64.4	73.8
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member] | Emerging Markets [Member]
Fair value of plan assets	42.7	31.1
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member] | Total Equity Securities [Member]
Fair value of plan assets	300.4	253.1
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member] | Corporate Bonds [Member]
Fair value of plan assets	180.7	188.7
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member] | Government Securities [Member]
Fair value of plan assets	53.3	52.9
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	234.0	241.6
U.S. Pension and Postretirement Plans [Member] | Level 2 [Member] | Cash [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member]
Fair value of plan assets	536.4	540.6	499.5
Pension Benefits Non-U.S. Plans [Member] | Domestic Equity [Member]
Fair value of plan assets	119.1	108.5
Pension Benefits Non-U.S. Plans [Member] | International Equity [Member]
Fair value of plan assets	206.2	227.6
Pension Benefits Non-U.S. Plans [Member] | Total Equity Securities [Member]
Fair value of plan assets	325.3	336.1
Pension Benefits Non-U.S. Plans [Member] | Corporate Bonds [Member]
Fair value of plan assets	64.3	75.2
Pension Benefits Non-U.S. Plans [Member] | Government Securities [Member]
Fair value of plan assets	103.4	86.3
Pension Benefits Non-U.S. Plans [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets	7.9	8.2
Pension Benefits Non-U.S. Plans [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	175.6	169.7
Pension Benefits Non-U.S. Plans [Member] | Cash [Member]
Fair value of plan assets	19.6	19.4
Pension Benefits Non-U.S. Plans [Member] | Real Estate [Member]
Fair value of plan assets	14.6	13.7
Pension Benefits Non-U.S. Plans [Member] | Other [Member]
Fair value of plan assets	1.3	1.7
Pension Benefits Non-U.S. Plans [Member] | Total Other Securities [Member]
Fair value of plan assets	35.5	34.8
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member]
Fair value of plan assets	34.3	36.0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Domestic Equity [Member]
Fair value of plan assets	14.7	0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | International Equity [Member]
Fair value of plan assets	0	16.6
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Total Equity Securities [Member]
Fair value of plan assets	14.7	16.6
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Corporate Bonds [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Government Securities [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Cash [Member]
Fair value of plan assets	19.6	19.4
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Real Estate [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Other [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 1 [Member] | Total Other Securities [Member]
Fair value of plan assets	19.6	19.4
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member]
Fair value of plan assets	486.2	489.2
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Domestic Equity [Member]
Fair value of plan assets	104.4	108.5
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | International Equity [Member]
Fair value of plan assets	206.2	211.0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Total Equity Securities [Member]
Fair value of plan assets	310.6	319.5
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Corporate Bonds [Member]
Fair value of plan assets	64.3	75.2
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Government Securities [Member]
Fair value of plan assets	103.4	86.3
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets	7.9	8.2
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	175.6	169.7
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Cash [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Real Estate [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Other [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 2 [Member] | Total Other Securities [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member]
Fair value of plan assets	15.9	15.4
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Domestic Equity [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | International Equity [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Total Equity Securities [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Corporate Bonds [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Government Securities [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Other Fixed Income Securities [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Total Fixed Income Securities [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Cash [Member]
Fair value of plan assets	0	0
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Real Estate [Member]
Fair value of plan assets	14.6	13.7
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Other [Member]
Fair value of plan assets	1.3	1.7
Pension Benefits Non-U.S. Plans [Member] | Level 3 [Member] | Total Other Securities [Member]
Fair value of plan assets	$ 15.9	$ 15.4