15. GOODWILL AND OTHER INTANGIBLE ASSETS – NET The changes in amounts of goodwill by operating segments were as follows. There are no accumulated goodwill impairment losses. | | | | | | | | | | | | | | | | PPA | | SAT | | CF | | Total | | October 31, 2021 | | $ | 542 | | $ | 265 | | $ | 2,484 | | $ | 3,291 | | Acquisitions (Note 3) | | | 132 | | | 69 | | | 599 | | | 800 | | Translation adjustments and other | | | (28) | | | (16) | | | (360) | | | (404) | | October 30, 2022 | | | 646 | | | 318 | | | 2,723 | | | 3,687 | | Acquisitions (Note 3) | | | 41 | | | 40 | | | | | | 81 | | Translation adjustments and other | | | 15 | | | 5 | | | 112 | | | 132 | | October 29, 2023 | | $ | 702 | | $ | 363 | | $ | 2,835 | | $ | 3,900 | |
The components of other intangible assets were as follows: | | | | | | | | | | 2023 | | 2022 | | Customer lists and relationships | | $ | 501 | | $ | 493 | | Technology, patents, trademarks, and other | | | 1,387 | | | 1,301 | | Total at cost | | | 1,888 | | | 1,794 | | Less accumulated amortization: | | | | | | | | Customer lists and relationships | | | 195 | | | 166 | | Technology, patents, trademarks, and other | | | 560 | | | 410 | | Total accumulated amortization | | | 755 | | | 576 | | Other intangible assets - net | | $ | 1,133 | | $ | 1,218 | |
Actual amortization expense for the past three years and the estimated amortization expense for the next five years follows: | | | | | Year | | Amortization | | 2021 | | $ | 116 | | 2022 | | | 145 | | 2023 | | | 169 | | Estimated - 2024 | | | 170 | | 2025 | | | 142 | | 2026 | | | 119 | | 2027 | | | 117 | | 2028 | | | 85 | |
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