| Intangible Assets |
Intangible Assets Identifiable intangible assets consisted of the following: | | | | | | | | | | | | | | | | | | | (In millions) | Gross Carrying Amount | | Accumulated Amortization | | Net Book Value | | June 30, 2026 | | | | | | | Customer relationships | $ | 14,696 | | | $ | 10,108 | | | $ | 4,588 | | | Acquired software and technology | 2,187 | | | 1,505 | | | 682 | | | Trade names | 621 | | | 481 | | | 140 | | | Purchased software | 1,354 | | | 370 | | | 984 | | | Capitalized software and other intangibles | 5,409 | | | 2,091 | | | 3,318 | | | Total | $ | 24,267 | | | $ | 14,555 | | | $ | 9,712 | | | | | | | | | December 31, 2025 | | | | | | | Customer relationships | $ | 14,773 | | | $ | 9,680 | | | $ | 5,093 | | | Acquired software and technology | 2,150 | | | 1,356 | | | 794 | | | Trade names | 633 | | | 458 | | | 175 | | | Purchased software | 1,397 | | | 441 | | | 956 | | | Capitalized software and other intangibles | 5,040 | | | 1,897 | | | 3,143 | | | Total | $ | 23,993 | | | $ | 13,832 | | | $ | 10,161 | |
Amortization expense associated with the above identifiable intangible assets was $587 million and $581 million for the three months ended June 30, 2026 and 2025, respectively, and $1.2 billion and $1.1 billion for the six months ended June 30, 2026 and 2025, respectively.
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