Investments and Related Matters Narrative (Details) (USD $)		3 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2012 Investment Segment [Member]	Mar. 31, 2011 Icahn Fund Ltd. [Member]	Sep. 30, 2012 Hain [Member] Investment Segment [Member]	Sep. 30, 2012 Equity Method Investments [Member] Investment Segment [Member]	Sep. 30, 2011 Equity Method Investments [Member] Investment Segment [Member]	Sep. 30, 2012 Equity Method Investments [Member] Investment Segment [Member]	Sep. 30, 2011 Equity Method Investments [Member] Investment Segment [Member]	Sep. 30, 2012 Federal-Mogul [Member]	Sep. 30, 2011 Federal-Mogul [Member]	Sep. 30, 2012 Federal-Mogul [Member]	Sep. 30, 2011 Federal-Mogul [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of equity method investment under fair value option	$ 359,000,000
Fair value option, recorded gains				193,000,000	(62,000,000)	360,000,000	(41,000,000)
Investment Owned, Balance, Shares			7,130,563
Fair value option investment ownership percentage			0.00%
Liabilities, decrease from deconsolidation		146,000,000
Increased equity attributable to non-controlling interests		146,000,000
Proceeds from Equity Method Investment, Dividends or Distributions								$ 1,000,000	$ 14,000,000	$ 2,000,000	$ 14,000,000