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Acquired Intangible Assets - Intangible Assets Acquired (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 31, 2021 | Jul. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 4,178 | $ 4,166
Accumulated amortization | (983) | (914)
Acquired intangible assets, net | $ 3,195 | $ 3,252
Weighted average life in years | 14 years | 14 years
Customer Lists / User Relationships |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 3,038 | $ 3,038
Accumulated amortization | (424) | (377)
Acquired intangible assets, net | $ 2,614 | $ 2,661
Weighted average life in years | 15 years | 15 years
Purchased Technology |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 698 | $ 686
Accumulated amortization | (470) | (455)
Acquired intangible assets, net | $ 228 | $ 231
Weighted average life in years | 5 years | 5 years
Trade Names and Logos |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 400 | $ 400
Accumulated amortization | (48) | (41)
Acquired intangible assets, net | $ 352 | $ 359
Weighted average life in years | 15 years | 15 years
Covenants Not to Compete or Sue |  |
Acquired Finite-Lived Intangible Assets [Line Items] |  |
Cost | $ 42 | $ 42
Accumulated amortization | (41) | (41)
Acquired intangible assets, net | $ 1 | $ 1
Weighted average life in years | 3 years | 3 years

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