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Intangible Assets
 6 Months Ended
Jun. 30, 2023
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, 2023
Customer relationships$14,703 $7,035 $7,668 
Acquired software and technology2,365 1,244 1,121 
Trade names636 326 310 
Purchased software1,223 619 604 
Capitalized software and other intangibles3,008 932 2,076 
Total$21,935 $10,156 $11,779 
December 31, 2022
Customer relationships$14,795 $6,371 $8,424 
Acquired software and technology2,510 1,234 1,276 
Trade names633 295 338 
Purchased software1,146 595 551 
Capitalized software and other intangibles2,601 775 1,826 
Total$21,685 $9,270 $12,415 
Amortization expense associated with the above identifiable intangible assets was as follows:
Three Months Ended
June 30,		Six Months Ended
June 30,
(In millions)2023202220232022
Amortization expense$614 $622 $1,209 $1,246