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Intangible Assets (Tables)
6 Months Ended
Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of Finite-Lived Intangible Assets
June 30, 2022December 31, 2021
($ in millions)Gross carrying amountAccumulated amortizationNetGross carrying amountAccumulated amortizationNet
Customer-related$1,613 $(1,060)$553 $1,797 $(1,222)$575 
Capitalized software and other1,497 (932)565 1,407 (814)593 
Total$3,110 $(1,992)$1,118 $3,204 $(2,036)$1,168