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Other Income (Expense), Net (Tables)
 9 Months Ended
Sep. 29, 2023
Other Income and Expenses [Abstract]  
Schedule of Other Nonoperating Income (Expense)
The following sets forth the components of the Company’s other income (expense), net ($ in millions):
Three-Month Period EndedNine-Month Period Ended
September 29, 2023September 30, 2022September 29, 2023September 30, 2022
Other components of net periodic benefit costs$1 $13 $6 $28 
Investment gains (losses):
Realized investment gains (losses)120 27 120 91 
Unrealized investment gains (losses)(168)(91)(178)(277)
Total investment gains (losses)(48)(64)(58)(186)
Total other income (expense), net$(47)$(51)$(52)$(158)