RETIREMENT BENEFITS - Schedule of Net Periodic Benefit Costs (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 27, 2026 |
Sep. 28, 2025 |
Sep. 27, 2026 |
Sep. 28, 2025 |
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| Defined Benefit Plan Disclosure [Line Items] | ||||
| Non-service FAS pension expense | $ (81) | $ (99) | $ (241) | $ (296) |
| Total FAS pension expense | (277) | (334) | ||
| Qualified defined benefit pension plans | ||||
| Defined Benefit Plan Disclosure [Line Items] | ||||
| Service cost | (12) | (12) | (36) | (38) |
| Interest cost | (348) | (368) | (1,042) | (1,104) |
| Expected return on plan assets | 355 | 359 | 1,063 | 1,079 |
| Amortization of actuarial losses | (80) | (78) | (239) | (235) |
| Amortization of prior service costs | (8) | (12) | (23) | (36) |
| Non-service FAS pension expense | (81) | (99) | (241) | (296) |
| Total FAS pension expense | $ (93) | $ (111) | $ (277) | $ (334) |
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- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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