| OTHER INTANGIBLES, NET The details of other intangible assets subject to amortization as of June 30, 2022 and June 30, 2021 are as follows (in millions): | | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2022 | Weighted Average Life | | Gross Carrying Value | | Accumulated Amortization | | Net Carrying Value | | Amortized intangibles: | | | | | | | | | Core technology | 11 years | | $ | 480 | | | $ | (121) | | | $ | 359 | | | Customer relationships | 13 years | | 1,020 | | | (366) | | | 654 | | | Product relationships | 8 years | | 239 | | | (204) | | | 35 | | | Other | 4 years | | 24 | | | (12) | | | 12 | | | Total other intangibles | | | $ | 1,763 | | | $ | (703) | | | $ | 1,060 | |
| | | | | | | | | | | | | | | | | | | | | | | | | June 30, 2021 | Weighted Average Life | | Gross Carrying Value | | Accumulated Amortization | | Net Carrying Value | | Amortized intangibles: | | | | | | | | | Core technology | 19 years | | $ | 140 | | | $ | (94) | | | $ | 46 | | | Customer relationships | 14 years | | 1,024 | | | (306) | | | 718 | | | Product relationships | 11 years | | 281 | | | (237) | | | 44 | | | Other | 5 years | | 17 | | | (8) | | | 9 | | | Total other intangibles | | | $ | 1,462 | | | $ | (645) | | | $ | 817 | |
Amortization expense was $123 million, $93 million, and $89 million for the fiscal years ended June 30, 2022, 2021, and 2020, respectively. Future amortization expense for the next five fiscal years is estimated to be: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (Dollars in millions) | 2023 | | 2024 | | 2025 | | 2026 | | 2027 | | Thereafter | | Total | | Amortization | $ | 132 | | | $ | 131 | | | $ | 129 | | | $ | 121 | | | $ | 105 | | | $ | 442 | | | $ | 1,060 | |
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