Shareowners' Deficit Warrants (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2003
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Outstanding		14.3	17.5
Class of Warrant or Right, Exercise Price of Warrants or Rights	3.00
Warrants exercised	14.3
Stock Issued During Period, Shares, Other	4.4
Proceeds from Warrant Exercises	$ 5.1
Warrants exercised, cash basis	1.7