Consolidated Condensed Balance Sheets (Parenthetical) (USD $) In Millions, except Per Share data	Jun. 30, 2011	Dec. 31, 2010
Consolidated Condensed Balance Sheets
Allowance for doubtful accounts receivable	$ 217.7	$ 216.3
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	1,250.0	1,250.0
Common stock, shares issued	71.8	71.8
Common stock, shares outstanding	71.8	71.8
Treasury stock, shares	0.2	0.2