Fair Value of Equity Method Investment Under Fair Value Option

No definition available.

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- Definition

Unrealized gain on equity method investments under fair value option

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

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- Definition

Fair value of obligations incurred from short sales.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=35711043&loc=d3e42429-110968

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- Definition

Sum of the carrying amounts as of the balance sheet date of all investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(h))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of unrealized holding gain (loss) recognized in the income statement for investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Trading Securities
-URI http://asc.fasb.org/extlink&oid=6526789

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(c))
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 35
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=27723805&loc=d3e24584-111560

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27357-111563

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Investments and Related Matters Investment Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Schedule of Investments [Line Items]
Investments	$ 10,087		$ 9,881
Securities sold, not yet purchased, at fair value	2,192		1,139
Investment Segment
Schedule of Investments [Line Items]
Investments	9,430		9,213
Securities sold, not yet purchased, at fair value	2,192		1,139
Portion of trading gains (loss) that relates to trading securities still held at balance sheet date	444	$ (174)
Investment Segment \| Equity securities:
Schedule of Investments [Line Items]
Investments	9,154		9,023
Securities sold, not yet purchased, at fair value	2,139		1,087
Investment Segment \| Corporate debt securities
Schedule of Investments [Line Items]
Investments	276		190
Investment Segment \| Basic materials \| Equity securities:
Schedule of Investments [Line Items]
Investments	975		963
Investment Segment \| Consumer, non-cyclical \| Equity securities:
Schedule of Investments [Line Items]
Investments	2,896		2,677
Securities sold, not yet purchased, at fair value	71		0
Investment Segment \| Consumer, cyclical \| Equity securities:
Schedule of Investments [Line Items]
Securities sold, not yet purchased, at fair value	1,880		968
Investment Segment \| Consumer, cyclical \| Corporate debt securities
Schedule of Investments [Line Items]
Securities sold, not yet purchased, at fair value	53		52
Investment Segment \| Energy \| Equity securities:
Schedule of Investments [Line Items]
Investments	1,479		1,278
Securities sold, not yet purchased, at fair value	100		19
Investment Segment \| Financial \| Equity securities:
Schedule of Investments [Line Items]
Investments	2,280		2,385
Investment Segment \| Industrial \| Equity securities:
Schedule of Investments [Line Items]
Securities sold, not yet purchased, at fair value	88		100
Investment Segment \| Technology \| Equity securities:
Schedule of Investments [Line Items]
Investments	847		911
Investment Segment \| Other \| Equity securities:
Schedule of Investments [Line Items]
Investments	$ 677		802
Hertz \| Investment Segment
Schedule of Investments [Line Items]
Ownership percentage in investment measured at fair value that would otherwise be accounted for under equity method	28.20%
Unrealized gain on equity method investments under fair value option	$ (94)
Fair value of equity method investment under fair value option	411		505
Herbalife \| Investment Segment
Schedule of Investments [Line Items]
Unrealized gain on equity method investments under fair value option	(182)
Fair value of equity method investment under fair value option	$ 1,100		$ 867