Pension and Postretirement Benefit Plans - Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Oct. 01, 2023	Oct. 02, 2022	Oct. 01, 2023	Oct. 02, 2022
Pension Plan [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 0	$ 0	$ 0	$ 0
Interest cost		147	151	442	387
Expected return on plan assets		(194)	(195)	(583)	(685)
Amortization of prior service cost/(credit)		0	0	1	1
Actuarial (gains)/losses	[1]	(11)	(193)	4	231
Curtailments		0	0	0	0
Special termination benefits		0	1	6	8
Net periodic benefit cost/(credit) reported in income		(58)	(235)	(131)	(57)
Pension Plan [Member] | International [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		21	29	65	89
Interest cost		73	38	216	121
Expected return on plan assets		(77)	(72)	(229)	(229)
Amortization of prior service cost/(credit)		0	0	0	(1)
Actuarial (gains)/losses	[1]	0	0	3	0
Curtailments		0	0	(1)	0
Special termination benefits		0	0	0	0
Net periodic benefit cost/(credit) reported in income		17	(6)	53	(20)
Postretirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		3	7	9	22
Interest cost		5	7	16	21
Expected return on plan assets		(11)	(12)	(33)	(35)
Amortization of prior service cost/(credit)		(29)	(31)	(90)	(99)
Actuarial (gains)/losses	[1]	0	0	0	0
Curtailments		0	(1)	(12)	(14)
Special termination benefits		0	0	0	1
Net periodic benefit cost/(credit) reported in income		$ (32)	$ (30)	$ (109)	$ (106)

[1] The third quarter of 2022 mainly reflected interim actuarial remeasurement gains, primarily driven by an increase in the discount rate, partially offset by unfavorable plan asset performance. The first nine months of 2022 mainly reflected interim actuarial remeasurement losses, primarily driven by unfavorable plan asset performance, partially offset by gains due to an increase in the discount rate.