| Intangible asset balances by major asset class |
The following tables present the company's intangible asset balances by major asset class. | | | | | | | | | | | | | | | | | | | | | | | At March 31, 2026 | | ($ in millions) | | Gross Carrying
Amount | | Accumulated
Amortization | | Net Carrying Amount (1) | | Intangible asset class: | | | | | | | | Capitalized software | | $ | 1,419 | | | $ | (455) | | | $ | 963 | | | Client relationships | | 13,352 | | | (5,878) | | | 7,474 | | | Completed technology | | 8,953 | | | (4,302) | | | 4,651 | | | Patents/trademarks | | 2,143 | | | (698) | | | 1,445 | | Other (2) | | 139 | | | (49) | | | 90 | | | Total | | $ | 26,006 | | | $ | (11,382) | | | $ | 14,624 | |
| | | | | | | | | | | | | | | | | | | | | | | At December 31, 2025 | | ($ in millions) | | Gross Carrying
Amount | | Accumulated
Amortization | | Net Carrying Amount (1) | | Intangible asset class: | | | | | | | | Capitalized software | | $ | 1,388 | | | $ | (424) | | | $ | 964 | | | Client relationships | | 11,261 | | | (5,602) | | | 5,659 | | | Completed technology | | 7,399 | | | (4,096) | | | 3,304 | | | Patents/trademarks | | 2,030 | | | (665) | | | 1,365 | | Other (2) | | 139 | | | (40) | | | 99 | | | Total | | $ | 22,218 | | | $ | (10,827) | | | $ | 11,391 | |
(1)Amounts at March 31, 2026 and December 31, 2025 include a decrease in the net intangible asset balance of $24 million and an increase in the net intangible asset balance of $182 million, respectively, due to foreign currency translation. (2)Other intangibles are primarily acquired proprietary and non-proprietary technology licenses, data, business processes, methodologies and systems.
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| Intangible assets, future amortization expense |
The future amortization expense relating to intangible assets currently recorded in the Consolidated Balance Sheet was estimated to be the following at March 31, 2026: | | | | | | | | | | | | | | | | | | | | | | ($ in millions) | | Capitalized
Software | | Acquired
Intangibles | | Total | | Remainder of 2026 | | $ | 389 | | | $ | 2,035 | | | $ | 2,424 | | | 2027 | | 377 | | | 2,668 | | | 3,046 | | | 2028 | | 186 | | | 2,363 | | | 2,549 | | | 2029 | | 11 | | | 1,680 | | | 1,691 | | | 2030 | | — | | | 1,240 | | | 1,240 | | | Thereafter | | — | | | 3,674 | | | 3,674 | |
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| Changes in goodwill balances by reportable segment |
The changes in the goodwill balances by segment for the three months ended March 31, 2026 and for the year ended December 31, 2025 were as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ($ in millions) | | Balance | | Goodwill
Additions | | Purchase Price Adjustments | | | | Foreign Currency Translation and Other Adjustments (1) | | Balance | | Segment | | 1/1/2026 | | | | Divestitures | | | 3/31/2026 | | Software | | $ | 52,987 | | | $ | 7,136 | | | $ | 1 | | | $ | — | | | $ | (175) | | | $ | 59,950 | | | Consulting | | 10,341 | | | 89 | | | (18) | | | — | | | (36) | | | 10,376 | | | Infrastructure | | 4,389 | | | — | | | 1 | | | — | | | (6) | | | 4,383 | | | Other | | — | | | — | | | — | | | — | | | — | | | — | | | Total | | $ | 67,717 | | | $ | 7,225 | | | $ | (17) | | | $ | — | | | $ | (217) | | | $ | 74,709 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ($ in millions) | | Balance | | Goodwill
Additions | | Purchase Price Adjustments | | | | Foreign Currency Translation and Other Adjustments (1) | | Balance | Segment | | 1/1/2025 | | | | Divestitures | | | 12/31/2025 | Software | | $ | 47,136 | | | $ | 5,004 | | | $ | (8) | | | $ | — | | | $ | 855 | | | $ | 52,987 | | Consulting | | 9,206 | | | 908 | | | 10 | | | — | | | 217 | | | 10,341 | | | Infrastructure | | 4,363 | | | — | | | 0 | | | 0 | | | 26 | | | 4,389 | | Other | | — | | | — | | | — | | | — | | | — | | | — | | | Total | | $ | 60,706 | | | $ | 5,912 | | | $ | 1 | | | $ | 0 | | | $ | 1,098 | | | $ | 67,717 | |
(1)Primarily driven by foreign currency translation.
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