Components of Net Periodic Benefit Cost for Pension and Retiree Medical Plans (Detail) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 11, 2016	Mar. 19, 2016	Jun. 13, 2015	Jun. 11, 2016	Jun. 13, 2015
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Contributions by Employer		$ 7
U.S.
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 90		$ 100	$ 181	$ 201
Interest cost	112		126	223	252
Expected return on plan assets	(192)		(197)	(384)	(393)
Amortization of prior service credit					(1)
Amortization of net losses/(gains)	39		48	77	95
Gross total	49		77	97	154
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements				0	0
Special termination benefits	1		1	1	5
Total expense	50		78	98	159
International
Defined Benefit Plan Disclosure [Line Items]
Service cost	21		26	36	45
Interest cost	24		29	42	51
Expected return on plan assets	(42)		(45)	(73)	(78)
Amortization of net losses/(gains)	10		18	18	32
Gross total	13		28	23	50
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	6			6	0
Total expense	19		28	29	50
Retiree Medical
Defined Benefit Plan Disclosure [Line Items]
Service cost	7		8	14	16
Interest cost	10		12	19	24
Expected return on plan assets	(6)		(6)	(11)	(12)
Amortization of prior service credit	(8)		(9)	(17)	(18)
Amortization of net losses/(gains)	(1)		1	(1)	1
Gross total	2		6	4	11
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements				0	0
Special termination benefits					1
Total expense	$ 2		$ 6	$ 4	$ 12