This element represents disclosure of the amount of gain which has been deferred as the result of the sale of a business or operating assets to a highly leveraged entity which deferred gain has been reflected in the accompanying statement of financial position as reduction from the related asset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
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-Section S99
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section U

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- Definition

This item represents the amount of net sales proceeds received on disposal of an equity method investment.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
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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.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
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- Definition

Amount of gain (loss) on sale or disposal of an equity method investment.

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No definition available.

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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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No definition available.

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- Definition

The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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-Name Accounting Standards Codification
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-Section 45
-Paragraph 12
-Subparagraph (b)
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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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No definition available.

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Acquisitions and Divestitures (Divestiture) (Details) - CAR, Inc - USD ($) shares in Millions, $ in Millions	1 Months Ended
	Mar. 31, 2016	Sep. 30, 2015	Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Ownership percentage			1.70%
Common Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of shares sold	204	60
Net sales proceeds	$ 233	$ 100
Pre-tax gain on sale of stock		$ 56
Gross sales proceeds	240
Deferred gain on sale	7
Other Operating Income (Expense) \| Common Stock
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on sale of stock	$ 75