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Acquired Intangible Assets | 3 Months Ended
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Oct. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract] |
Acquired Intangible Assets |
5. Acquired Intangible Assets
The following table shows the cost, accumulated amortization and weighted average life in years for our acquired intangible assets at the dates indicated. The weighted average lives are calculated for assets that are not fully amortized.
(Dollars in millions) | Customer Lists / User Relationships |  | Purchased Technology |  | Trade Names and Logos |  | Covenants Not to Compete or Sue |  | Total
At October 31, 2022: |  |  |  |  |  |  |  |  |
Cost | $ | 6,197 |  |  | $ | 1,612 |  |  | $ | 680 |  |  | $ | 42 |  |  | $ | 8,531 |
Accumulated amortization | (855) |  |  | (634) |  |  | (101) |  |  | (42) |  |  | (1,632) |
Acquired intangible assets, net | $ | 5,342 |  |  | $ | 978 |  |  | $ | 579 |  |  | $ | — |  |  | $ | 6,899 |
Weighted average life in years | 14 |  | 8 |  | 13 |  | 0 |  | 13
At July 31, 2022: |  |  |  |  |  |  |  |  |
Cost | $ | 6,197 |  |  | $ | 1,612 |  |  | $ | 680 |  |  | $ | 42 |  |  | $ | 8,531 |
Accumulated amortization | (748) |  |  | (593) |  |  | (87) |  |  | (42) |  |  | (1,470) |
Acquired intangible assets, net | $ | 5,449 |  |  | $ | 1,019 |  |  | $ | 593 |  |  | $ | — |  |  | $ | 7,061 |
Weighted average life in years | 14 |  | 8 |  | 13 |  | 0 |  | 13
The following table shows the expected future amortization expense for our acquired intangible assets at October 31, 2022. Amortization of purchased technology is charged to amortization of acquired technology in our condensed consolidated statements of operations. Amortization of other acquired intangible assets such as customer lists is charged to amortization of other acquired intangible assets in our condensed consolidated statements of operations. If impairment events occur, they could accelerate the timing of acquired intangible asset charges.
(In millions) | Expected Future Amortization Expense
Twelve months ending July 31, |
2023 (excluding the three months ended October 31, 2022) | $ | 484 |
2024 | 624 |
2025 | 622 |
2026 | 620 |
2027 | 594 |
Thereafter | 3,955 |
Total expected future amortization expense | $ | 6,899 |

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- Definition The entire disclosure for goodwill and intangible assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -URI https://asc.fasb.org/topic&trid=2144416 + Details
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