Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans (Details 4) (USD $) In Millions, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	$ 750.8	$ 218.3	$ 204.0
U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	171.2	40.8	37.9
Cash and cash equivalents [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	15.3
Fixed income funds [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	383.0
International equity funds [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	257.4
Insurance asset [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	15.4
Other [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	79.7
Other [Member] | U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	5.8
Level 1 [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	8.2
Level 1 [Member] | U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 1 [Member] | Cash and cash equivalents [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	8.2
Level 1 [Member] | Fixed income funds [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 1 [Member] | International equity funds [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 1 [Member] | Insurance asset [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 1 [Member] | Other [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 1 [Member] | Other [Member] | U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 2 [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	690.9
Level 2 [Member] | U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	165.9
Level 2 [Member] | Cash and cash equivalents [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	7.1
Level 2 [Member] | Fixed income funds [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	383.0
Level 2 [Member] | International equity funds [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	257.4
Level 2 [Member] | Insurance asset [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 2 [Member] | Other [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	43.4
Level 2 [Member] | Other [Member] | U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0.5
Level 3 [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	51.7
Level 3 [Member] | U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	5.3
Level 3 [Member] | Cash and cash equivalents [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 3 [Member] | Fixed income funds [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 3 [Member] | International equity funds [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	0
Level 3 [Member] | Insurance asset [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	15.4	14.6
Level 3 [Member] | Other [Member] | Non-U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	36.3
Level 3 [Member] | Other [Member] | U.S. pension plans [Member]
Fair values of pension plan assets, by asset category and level of fair values
Fair value of plan assets	$ 5.3