Fair Value Measurement (Assets Measured At Fair Value On A Nonrecurring Basis) (Details) (USD $)	3 Months Ended			12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Goodwill, Impairment charge	$ 392,300,000	$ 61,000,000	$ 128,500,000	$ 392,300,000	$ 61,000,000	$ 128,500,000
Total, Impairment charge				532,000,000	92,500,000	154,000,000
Goodwill, Net book value	2,222,100,000	2,526,800,000	2,333,300,000	2,222,100,000	2,526,800,000	2,333,300,000
Other intangible assets, Net book value	572,200,000	756,900,000		572,200,000	756,900,000
Total assets	8,281,700,000	9,083,200,000	8,747,600,000	8,281,700,000	9,083,200,000	8,747,600,000
Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets held and used, Impairment charge				14,700,000	2,200,000	20,200,000
Long-lived assets held for sale or disposal, Impairment charge				34,300,000	2,200,000	5,000,000
Goodwill, Impairment charge				392,300,000	61,000,000	128,500,000
Other intangible assets, Impairment charge				90,700,000	26,900,000
Total, Impairment charge				532,000,000	92,300,000	153,700,000
Long-lived assets held and used, Net book value	61,300,000	2,700,000	3,800,000	61,300,000	2,700,000	3,800,000
Long-lived assets held for sale, Net book value	11,700,000	3,500,000	6,100,000	11,700,000	3,500,000	6,100,000
Goodwill, Net book value		102,700,000	184,900,000		102,700,000	184,900,000
Other intangible assets, Net book value	2,100,000			2,100,000
Total assets	75,100,000	108,900,000	194,800,000	75,100,000	108,900,000	194,800,000
Fair Value, Measurements, Nonrecurring [Member] | Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-lived assets held and used, Fair value measurement	68,800,000	3,000,000	4,000,000	68,800,000	3,000,000	4,000,000
Long-lived assets held for sale or disposal, Fair value measurement	12,800,000	3,600,000	6,500,000	12,800,000	3,600,000	6,500,000
Goodwill, Fair value measurement		102,700,000	184,200,000		102,700,000	184,200,000
Other intangible assets, Fair value measurement	2,200,000			2,200,000
Total, Fair value measurement	$ 83,800,000	$ 109,300,000	$ 194,700,000	$ 83,800,000	$ 109,300,000	$ 194,700,000