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Business Combinations - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended | 1 Months Ended | 12 Months Ended |
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Dec. 31, 2013 | Dec. 31, 2011 | Jan. 31, 2011 Aprimo Inc | Apr. 30, 2011 Aster Data Systems, Inc. | Dec. 31, 2011 Aster Data Systems, Inc. | Dec. 31, 2012 ecircle Beteiligungs Gmbh Series of Individually Immaterial Business Acquisitions
Business Acquisition |  |  |  |  |  |
Percentage of stock acquired |  |  | 100.00% |  |  | 100.00%
Acquisition date of business |  |  | 2011-01 | 2011-04 |  |
Pre-existing equity investment |  |  |  | 11.20% |  |
Gain (loss) on sale of equity investment | $ (22) | $ 17 |  |  |  |
Gain on equity investment |  |  |  |  | $ 11 |

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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition For investments in debt and equity securities accounted for at cost, the excess of net sale proceeds over the carrying amount of investments disposed of during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 7 -Subparagraph c, d -Article 5 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=26872669&loc=d3e20235-122688 + Details
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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=6382943&loc=d3e33918-111571 + Details
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