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Investments and Related Matters Narrative (Details) (USD $) In Millions, except Share data, unless otherwise specified		3 Months Ended			3 Months Ended		6 Months Ended
	Jun. 30, 2012 Investment Segment [Member]	Mar. 31, 2011 Icahn Fund Ltd. [Member]	Jun. 30, 2012 Hain [Member] Investment Segment [Member]	Jun. 30, 2012 MGM [Member] Investment Segment [Member]	Jun. 30, 2012 Equity Method Investments [Member] Investment Segment [Member]	Jun. 30, 2011 Equity Method Investments [Member] Investment Segment [Member]	Jun. 30, 2012 Equity Method Investments [Member] Investment Segment [Member]	Jun. 30, 2011 Equity Method Investments [Member] Investment Segment [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair value of equity method investment under fair value option	$ 746
Fair value option, recorded gains					46	14	167	21
Investment Owned, Balance, Shares			7,130,563	17,174,706
Fair value option investment ownership percentage			0.00%	0.00%
Liabilities, decrease from deconsolidation		146
Increased equity attributable to non-controlling interests		$ 146

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The amount of the reduction or elimination during the period of a liability resulting from the parent's loss of control and deconsolidation of the entity in which one or more outside parties had a noncontrolling interest.

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For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Balance held at close of period in number of shares.

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