Retirement Benefits (Schedule of Net Periodic Pension Benefit) (Details) - U.K. - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Apr. 03, 2026 |
Apr. 04, 2025 |
|
| Defined Benefit Plan Disclosure [Line Items] | ||
| Interest cost | $ 16 | $ 15 |
| Expected return on plan assets | (29) | (26) |
| Recognized actuarial loss | 4 | 1 |
| Net periodic pension benefit | $ (9) | $ (10) |
| X | ||||||||||
- 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
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- 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
|
| X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Details
|