Business Acquisitions And Other Investing Activities Net.

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Number of Business Acquisitions and Other Equity Investments

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Number of Equity Investments

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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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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 323
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Amount of gain (loss) on sale or disposal of an equity method investment.

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The number of businesses acquired by the entity during the period.

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Business Combinations and Other Investment Activities - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2016 USD ($) Business_Acquisitions	Dec. 31, 2015 USD ($) Business_Acquisitions Transaction	Dec. 31, 2014 USD ($) Transaction
Business Acquisition
Business acquisitions and other investing activities, net	16	17	69
Equity investment arising from an impairment of carrying value			$ 9
Series of Individually Immaterial Business Acquisitions
Business Acquisition
Number of businesses acquired \| Business_Acquisitions	1	2
Consideration transferred	$ 16
Business acquisitions and other investing activities, net		17	69
Number of equity investments \| Transaction		2	6
Number of business acquisitions		85
Other Nonoperating Income (Expense)
Business Acquisition
Gain (loss) on sale of equity investment		$ 57
Marketing Applications \| Series of Individually Immaterial Business Acquisitions
Business Acquisition
Number of businesses acquired \| Transaction			2