CONSOLIDATED BALANCE SHEET Parenthetical (USD $) In Millions, except Per Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets
Trade receivables, allowance (in dollars)	$ 33.0	$ 47.6
Stockholders’ equity
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	300.0	300.0
Common stock, issued shares	124.5	123.7
Treasury stock, shares	15.5	13.8