CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
CONSOLIDATED BALANCE SHEETS
Receivables, allowances (in dollars)	$ 6.3	$ 8.3
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, authorized	4,200	4,200
Common Stock, issued	205.1	204.8