Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Millions, $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Accounts and notes receivable, allowances	$ 99.6	$ 103.7
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	426.0	426.0
Common shares, issued	180.7	180.5
Treasury stock, shares	0.0	0.0