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Property and Equipment, Net - Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Oct. 31, 2021 | Apr. 30, 2021 | Oct. 31, 2020 | Oct. 31, 2021 | Oct. 31, 2020 | Jan. 31, 2021
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Depreciation expense | $ 66 |  | $ 58 | $ 194 | $ 170 |
Pleasanton, California | Affiliated Entity |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Asset acquisition, consideration transferred |  | $ 173 |  |  |  |
Expenses from transactions with related party |  | 2 |  |  |  | $ 2
Property, plant and equipment, additions |  | 158 |  |  |  |
Difference between right-of-use asset and lease liability |  | $ 15 |  |  |  |

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- Definition Amount of consideration transferred in asset acquisition. Includes, but is not limited to, cash, liability incurred by acquirer, and equity interest issued by acquirer. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9215-128498 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 55 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6829253&loc=SL6831962-166255 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123385561&loc=d3e9135-128495 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 50 -Section 30 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9212-128498 + Details
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