Postemployment Benefits - Postretirement Benefit Plans Net Cost/(Benefit) (Details) - Postretirement Plans - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 27, 2026 |
Mar. 28, 2026 |
Jun. 28, 2025 |
Jun. 27, 2026 |
Jun. 28, 2025 |
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| Defined Benefit Plan Disclosure [Line Items] | |||||
| Service cost | $ 1 | $ 0 | $ 1 | $ 1 | |
| Interest cost | 5 | 8 | 11 | 15 | |
| Expected return on plan assets | (8) | (11) | (16) | (23) | |
| Amortization of prior service costs/(credits) | (2) | (3) | (5) | (6) | |
| Amortization of unrecognized losses/(gains) | (6) | (7) | (12) | (13) | |
| Settlements | 0 | $ 45 | 0 | 45 | 0 |
| Net postretirement cost/(benefit) | $ (10) | $ (13) | $ (66) | $ (26) | |
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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 (increase) decrease to benefit obligation of defined benefit plan from irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Includes, but is not limited to, lump-sum cash payment to participant in exchange for right to receive specified benefits, purchase of nonparticipating annuity contract and change from remeasurement. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Details
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