Income Taxes - Net Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Jan. 02, 2021	Jan. 04, 2020
Income Tax Examination [Line Items]
Obligation for pension and postretirement benefits	$ 287	$ 289
U.S. operating loss and tax credit carryforwards	320	235
Accrued liabilities	202	214
Deferred compensation	100	95
Operating lease liabilities	97	70
Non-U.S. operating loss and tax credit carryforwards	65	52
Valuation allowance on deferred tax assets	(157)	(145)
Amortization of goodwill and other intangibles	(171)	(160)
Property, plant and equipment, principally depreciation	(199)	(153)
Operating lease right-of-use assets	(95)	(68)
Other leasing transactions, principally leveraged leases	(79)	(80)
Prepaid pension benefits	(44)	(29)
Other, net	16	(51)
Deferred taxes, net	342	$ 269
U.S.
Income Tax Examination [Line Items]
Operating loss and tax credit carryforward benefits through expiration	283
Operating loss and tax indefinite credit carryforward benefit	37
Non-U.S.
Income Tax Examination [Line Items]
Operating loss and tax credit carryforward benefits through expiration	29
Operating loss and tax indefinite credit carryforward benefit	$ 36