Condensed Consolidated Statements Of Operations (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Income from operations of discontinued businesses, income tax expense (benefit)	$ (2)	$ 2	$ 2	$ 8
Gain/(loss) from disposal of discontinued businesses, income tax expense (benefit)	$ 0	$ (1)	$ (2)	$ 60