| | | | | | | | | 8. | | Goodwill and Intangible Assets, Net |
Goodwill
The following table summarizes the activity in the carrying amount of goodwill for the six months ended June 30, 2026: | | | | | | | Amount | | | | (in millions) | Balance as of December 31, 2025 | $ | 393 | | Addition related to business acquisition | 19 | | | | | | Balance as of June 30, 2026 | $ | 412 | |
Intangible Assets, Net
Intangible assets, net of accumulated amortization, resulting from business combinations and asset purchases consisted of the following:
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| As of December 31, 2025 |
| Gross Carrying Value | | Accumulated Amortization | | Net Carrying Value | | Weighted-Average Remaining Useful Life | | | | | | | | |
| (in millions) | | (in years) | Developed technology | $ | 92 | | | $ | (73) | | | $ | 19 | | | 1.8 | Customer relationships | 66 | | | (27) | | | 39 | | | 8.7 | Patents | 17 | | | (7) | | | 10 | | | 4.9 | Other | 9 | | | (6) | | | 3 | | | 5.9 | Total intangible assets, net | $ | 184 | | | $ | (113) | | | $ | 71 | | |
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| As of June 30, 2026 |
| Gross Carrying Value | | Accumulated Amortization | | Net Carrying Value | | Weighted-Average Remaining Useful Life | | | | | | | | |
| (in millions) | | (in years) | Developed technology | $ | 85 | | | $ | (72) | | | $ | 13 | | | 1.7 | Customer relationships | 75 | | | (31) | | | 44 | | | 8.8 | Patents | 17 | | | (9) | | | 8 | | | 4.5 | Other | 5 | | | (4) | | | 1 | | | 4.9 | Total intangible assets, net | $ | 183 | | | $ | (116) | | | $ | 66 | | |
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Amortization expense was $6 million for each of the three months ended June 30, 2025 and 2026 and $12 million for each of the six months ended June 30, 2025 and 2026.
As of June 30, 2026, the remaining intangible asset amortization was as follows:
| | | | | | | Amount | | | Year ending December 31, | (in millions) | Remainder of 2026 | $ | 9 | | 2027 | 13 | | 2028 | 9 | | 2029 | 6 | | 2030 | 6 | | Thereafter | 23 | | Total | $ | 66 | |
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