Consolidated Balance Sheets (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Statement of Financial Position [Abstract]
Common Stock, Par Value	$ 0.05	$ 0.05
Common Stock, Shares Authorized	1,000	1,000
Common Stock, Shares, Issued	562.5	562.2
Common Stock, Shares, Outstanding	562.5	562.2
Treasury Stock, Shares	11.8	14.0