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Intangible Assets
3 Months Ended
Mar. 31, 2022
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
March 31, 2022
Customer relationships$14,873 $5,391 $9,482 
Acquired software and technology2,415 982 1,433 
Trade names617 244 373 
Purchased software1,160 498 662 
Capitalized software and other intangibles2,056 564 1,492 
Total$21,121 $7,679 $13,442 
(In millions)Gross
Carrying
Amount
Accumulated
Amortization
Net Book
Value
December 31, 2021
Customer relationships$15,103 $5,112 $9,991 
Acquired software and technology2,522 901 1,621 
Trade names612 228 384 
Purchased software1,133 479 654 
Capitalized software and other intangibles1,879 520 1,359 
Total$21,249 $7,240 $14,009 
Amortization expense associated with the above identifiable intangible assets was as follows:
Three Months Ended
March 31,
(In millions)20222021
Amortization expense$625 $642