Condensed Consolidated Balance Sheets (Parentheticals) (USD $) In Millions, except Share data	Sep. 30, 2011	Dec. 31, 2010
Allowance for receivables	$ 12.4	$ 14.0
Preferred stock, shares authorized	2,357,299	2,357,299
Preferred stock, 6 3/4% Cumulative Convertible, shares issued	155,250	155,250
Preferred stock, 6 3/4% Cumulative Convertible, shares outstanding	155,250	155,250
Preferred stock, depository shares	3,105,000	3,105,000
Preferred stock, 6 3/4% Cumulative Convertible, liquidation preference	$ 1,000	$ 1,000
Preferred stock, liquidation depositary	50	50
Common Shares, par value	$ 0.01	$ 0.01
Common shares, shares authorized	480,000,000	480,000,000
Common shares, shares issued	196,290,915	198,354,851
Common schares, shares outstanding	195,777,340	197,841,276