Pension and Postretirement Benefit Plans - Net Periodic Benefit Cost (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 30, 2025	Mar. 31, 2024
Pension Plan [Member] | U.S. [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0
Interest cost	133	139
Expected return on plan assets	(184)	(208)
Amortization of prior service cost/(credit)	0	0
Curtailments	0	0
Special termination benefits	0	0
Net periodic benefit cost/(credit) reported in income	(51)	(69)
Pension Plan [Member] | International [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	24	20
Interest cost	70	78
Expected return on plan assets	(79)	(80)
Amortization of prior service cost/(credit)	1	1
Curtailments	(9)	(2)
Special termination benefits	0	5
Net periodic benefit cost/(credit) reported in income	8	22
Postretirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	4	4
Interest cost	6	6
Expected return on plan assets	(14)	(13)
Amortization of prior service cost/(credit)	(32)	(29)
Curtailments	(50)	0
Special termination benefits	0	0
Net periodic benefit cost/(credit) reported in income	$ (85)	$ (33)