Shareholders' Equity - Before and After Tax Components of Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Pension and postretirement benefits adjustments, pre-tax:
Unrealized gains (losses), pre-tax	$ 285	$ 1,148	$ (144)
Amortization of net actuarial loss, pre-tax	83	150	184
Amortization of prior service cost, pre-tax	8	7	6
Recognition of prior service credit cost, pre-tax	(4)	(20)	(8)
Pension and postretirement benefits adjustments, net, pre-tax	372	1,285	38
Pension and postretirement benefits adjustments, tax:
Unrealized gains (losses), tax (expense) benefit	(67)	(271)	35
Amortization of net actuarial loss, tax (expense) benefit	(20)	(34)	(43)
Amortization of prior service cost, tax (expense) benefit	(2)	(3)	(1)
Recognition of prior service credit, tax (expense) benefit	0	4	2
Pension and postretirement benefits adjustments, net, tax (expense) benefit	(89)	(304)	(7)
Pension and postretirement benefits adjustments, after-tax:
Unrealized gains (losses), after-tax	218	877	(109)
Amortization of net actuarial loss, after-tax	63	116	141
Amortization of prior service cost, after-tax	6	4	5
Recognition of prior service credit, after-tax	(4)	(16)	(6)
Pension and postretirement benefits adjustments, net, after-tax	283	981	31
Foreign currency translation adjustments, pre-tax:
Foreign currency translation adjustments, pre-tax	(103)	(51)	81
Business disposition, pre-tax	0	14	0
Foreign currency translation adjustments, net, pre-tax	(103)	(37)	81
Foreign currency translation adjustments, tax:
Foreign currency translation adjustments, tax (expense) benefit	0	0	(3)
Business disposition, tax (expense) benefit	0	0	0
Foreign currency translation adjustments, net, tax (expense) benefit	0	0	(3)
Foreign currency translation adjustments, after-tax:
Foreign currency translation adjustments, after-tax	(103)	(51)	78
Business disposition, after-tax	0	14	0
Foreign currency translation adjustments, net, after-tax	(103)	(37)	78
Deferred gains (losses) on hedge contracts, pre-tax:
Current deferrals, pre-tax	(7)	3	4
Reclassification adjustments, pre-tax	0	(1)	(6)
Deferred gains (losses) on hedge contracts, net, pre-tax	(7)	2	(2)
Deferred gains (losses) on hedge contracts, tax:
Current deferrals, tax (expense) benefit	4	0	(1)
Reclassification adjustments, tax (expense) benefit	0	0	2
Deferred gains (losses) on hedge contracts, net, tax (expense) benefit	4	0	1
Deferred gains (losses) on hedge contracts, after-tax:
Current deferrals, after-tax	(3)	3	3
Reclassification adjustments, after-tax	0	(1)	(4)
Deferred gains (losses) on hedge contracts, net, after-tax	(3)	2	(1)
Other comprehensive income (loss), pre-tax	262	1,250	117
Other comprehensive income (loss), tax (expense) benefit	(85)	(304)	(9)
Total other comprehensive income, net of tax	$ 177	$ 946	$ 108