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Other (Income) Expense, Net (Tables)
6 Months Ended
Jun. 30, 2024
Other Income and Expenses [Abstract]  
Other (Income) Expense, Net
Other (income) expense, net, consisted of: 
 Three Months Ended
June 30,
Six Months Ended
June 30,
($ in millions)2024202320242023
Interest income$(69)$(109)$(141)$(221)
Interest expense310 277 613 519 
Exchange losses60 62 144 122 
(Income) loss from investments in equity securities, net (1)
(56)175 (200)(274)
Net periodic defined benefit plan (credit) cost other than service cost(159)(111)(319)(226)
Other, net(44)(122)(85)339 
 $42 $172 $12 $259 
(1)    Includes net realized and unrealized gains and losses from investments in equity securities either owned directly or through ownership interests in investment funds. Unrealized gains and losses from investments that are directly owned are determined at the end of the reporting period, while gains and losses from ownership interests in investment funds are accounted for on a one quarter lag.