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Business Combinations - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions | Apr. 11, 2021 | Mar. 09, 2021 | Oct. 25, 2018
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ZeniMax Media Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Total consideration transferred |  | $ 8,100 |
Cash and cash equivalents acquired |  | $ 768 |
Acquisition date |  | Mar. 09, 2021 |
GitHub, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Total consideration transferred |  |  | $ 7,500
Acquisition date |  |  | Oct. 25, 2018
Cash paid to acquire the business |  |  | $ 1,300
Transactions recognized separately from preliminary purchase price allocation |  |  | $ 600
Nuance Communications Inc |  |  |
Business Acquisition [Line Items] |  |  |
Acquisition agreement date | Apr. 11, 2021 |  |
Acquisition agreement share price | $ 56.00 |  |
Total purchase price to be transferred | $ 19,700 |  |

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
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