Income Taxes - Deferred Taxes (Details) - USD ($) $ in Millions	Dec. 28, 2024	Dec. 30, 2023
Income Tax Examination [Line Items]
Capitalized research and development expenditures	$ 631	$ 520
Accrued liabilities	224	228
U.S. operating loss and tax credit carryforwards	212	216
Obligation for pension and postretirement benefits	109	123
Deferred compensation	94	103
Operating lease liabilities	93	102
Non-U.S. operating loss and tax credit carryforwards	88	73
Prepaid pension benefits	(562)	(387)
Property, plant and equipment, principally depreciation	(198)	(211)
Amortization of goodwill and other intangibles	(184)	(185)
Operating lease right-of-use assets	(90)	(99)
Valuation allowance on deferred tax assets	(82)	(82)
Other leasing transactions, principally leveraged leases	(42)	(47)
Other, net	(32)	(5)
Deferred taxes, net	261	$ 349
U.S.
Income Tax Examination [Line Items]
Operating loss and tax credit carryforward benefits subject to expiration	166
Operating loss and tax credit carryforward benefits that may be carried forward indefinitely	46
Non-U.S.
Income Tax Examination [Line Items]
Operating loss and tax credit carryforward benefits that may be carried forward indefinitely	$ 80