Fair Value Measurements - Defined Benefit Plan Assets (Details) (USD $) In Millions, unless otherwise specified							12 Months Ended										12 Months Ended
	Dec. 31, 2011 U.S. pension plans [Member]	Dec. 31, 2010 U.S. pension plans [Member]	Dec. 31, 2009 U.S. pension plans [Member]	Dec. 31, 2011 Non-U.S. pension plans [Member]	Dec. 31, 2010 Non-U.S. pension plans [Member]	Dec. 31, 2009 Non-U.S. pension plans [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2010 Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2010 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2010 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2010 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2010 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2010 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2010 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2010 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2010 Fixed Income Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2010 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2010 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2010 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2010 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2010 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2010 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2010 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2010 Equity Securities [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2010 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2010 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2010 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2010 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2011 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2010 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Dec. 31, 2011 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2010 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2011 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2010 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2011 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2010 Real Estate and Other [Member] Fair Value, Measurements, Recurring [Member] Non-U.S. pension plans [Member] Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 290.4	$ 287.2	$ 269.1	$ 154.9	$ 154.6	$ 144.0			$ 290.4	$ 287.2	$ 49.6	$ 48.5	$ 240.8	$ 238.7	$ 0	$ 0			$ 154.9	$ 154.6	$ 0	$ 0	$ 154.9	$ 154.6	$ 0	$ 0	$ 158.2	$ 113.7	$ 0	$ 0	$ 158.2	$ 113.7	$ 0	$ 0	$ 63.5	$ 59.6	$ 0	$ 0	$ 63.5	$ 59.6	$ 0	$ 0	$ 101.5	$ 140.5	$ 49.6	$ 48.5	$ 51.9	$ 92.0	$ 0	$ 0	$ 78.3	$ 88.4	$ 0	$ 0	$ 78.3	$ 88.4	$ 0	$ 0	$ 30.7	$ 33.0	$ 0	$ 0	$ 30.7	$ 33.0	$ 0	$ 0	$ 13.1	$ 6.6	$ 0	$ 0	$ 13.1	$ 6.6	$ 0	$ 0
Defined Benefit Plan, Plan Assets at Fair Value, Valuation Techniques							A	A									A	A