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Business Combinations and Other Investment Activities - Additional Information (Detail) $ in Millions | 12 Months Ended
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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

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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=64825282&loc=d3e32787-111569 + Details
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