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Other (Income) Expense, Net
 9 Months Ended
Sep. 30, 2022
Other Income and Expenses [Abstract]  
Other (Income) Expense, Net Other (Income) Expense, Net
Other (income) expense, net, consisted of: 
 Three Months Ended
September 30,		Nine Months Ended
September 30,
($ in millions)2022202120222021
Interest income$(40)$(7)$(62)$(27)
Interest expense244 196 727 597 
Exchange losses96 46 220 202 
Loss (income) from investments in equity securities, net (1)
371 (683)1,361 (1,535)
Net periodic defined benefit plan (credit) cost other than service cost(60)40 (208)(159)
Other, net(182)(42)(462)(85)
 $429 $(450)$1,576 $(1,007)
(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 nine months ended September 30, 2022 and 2021 was $660 million and $570 million, respectively.