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Other (Income) Expense, Net
 6 Months Ended
Jun. 30, 2025
Other Income and Expenses [Abstract]  
Other (Income) Expense, Net Other (Income) Expense, Net
Other (income) expense, net, consisted of: 
 Three Months Ended
June 30,		Six Months Ended
June 30,
($ in millions)2025202420252024
Interest income$(69)$(69)$(178)$(141)
Interest expense305 310 618 613 
Exchange losses78 60 167 144 
Income from investments in equity securities, net (1)
(100)(56)(189)(200)
Net periodic defined benefit plan (credit) cost other than service cost(152)(159)(300)(319)
Other, net(69)(44)(161)(85)
 $(7)$42 $(43)$12 
(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.
Interest paid for the six months ended June 30, 2025 and 2024 was $616 million and $581 million, respectively.