Components of Net Periodic Benefit Cost for Pension and Retiree Medical Plans (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 23, 2013	Mar. 24, 2012
U.S.
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 108	$ 95
Interest cost	121	123
Expected return on plan assets	(190)	(184)
Amortization of prior service cost/(benefit)	4	4
Amortization of net losses	67	60
Gross total	110	98
Settlement/Curtailment (gain)/loss		(7)
Special termination benefits	1	4
Total expense	111	95
International
Defined Benefit Plan Disclosure [Line Items]
Service cost	22	18
Interest cost	22	20
Expected return on plan assets	(30)	(26)
Amortization of prior service cost/(benefit)
Amortization of net losses	13	10
Gross total	27	22
Settlement/Curtailment (gain)/loss
Special termination benefits
Total expense	27	22
Retiree Medical
Defined Benefit Plan Disclosure [Line Items]
Service cost	10	12
Interest cost	13	15
Expected return on plan assets	(6)	(5)
Amortization of prior service cost/(benefit)	(5)	(6)
Amortization of net losses
Gross total	12	16
Settlement/Curtailment (gain)/loss
Special termination benefits		4
Total expense	$ 12	$ 20