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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 323
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-Section 50
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Fair value portion of investments accounted under the equity method.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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-Section 45
-Paragraph 28
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
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Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50% or less owned persons accounted for by the equity method (equity method investees).

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-Publisher FASB
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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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Investment in SABMiller (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Nov. 11, 2015
Schedule of Equity Method Investments [Line Items]
Earnings from equity investment in SABMiller	$ 757	$ 1,006	$ 991
SABMiller Plc [Member]
Schedule of Equity Method Investments [Line Items]
Equity method investment, ownership percentage (approximately)				27.00%
Undistributed earnings from equity method investment	3,200
SABMiller Plc [Member] \| Reported Value Measurement [Member]
Schedule of Equity Method Investments [Line Items]
Fair value of investment in SABMiller	5,500	6,200
SABMiller Plc [Member] \| Level 1 [Member] \| Estimate of Fair Value Measurement [Member]
Schedule of Equity Method Investments [Line Items]
Fair value of investment in SABMiller	$ 25,800	$ 22,500