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Intangible Assets
 6 Months Ended
Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]  
Intangible Assets Intangible Assets
Identifiable intangible assets consisted of the following:
(In millions)Gross
Carrying
Amount		Accumulated
Amortization		Net Book
Value
June 30, 2024
Customer relationships$14,550 $8,116 $6,434 
Acquired software and technology2,110 1,228 882 
Trade names638 384 254 
Purchased software1,030 489 541 
Capitalized software and other intangibles3,696 1,255 2,441 
Total$22,024 $11,472 $10,552 
December 31, 2023
Customer relationships$14,669 $7,594 $7,075 
Acquired software and technology2,148 1,148 1,000 
Trade names641 356 285 
Purchased software1,087 520 567 
Capitalized software and other intangibles3,356 1,073 2,283 
Total$21,901 $10,691 $11,210 
Amortization expense associated with the above identifiable intangible assets was $586 million and $614 million for the three months ended June 30, 2024 and 2023, respectively, and $1.2 billion for both the six months ended June 30, 2024 and 2023.