v2.4.0.6
Components of Net Periodic Benefit Cost for Pension and Retiree Medical Plans (Detail) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 16, 2012
Jun. 11, 2011
Jun. 16, 2012
Jun. 11, 2011
U.S.
        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 94 $ 80 $ 189 $ 162
Interest cost 123 126 246 252
Expected return on plan assets (183) (162) (367) (324)
Amortization of prior service cost/(benefit) 4 4 8 7
Amortization of experience loss 59 34 119 67
Gross total 97 82 195 164
Settlement/Curtailment (gain)/loss     (7) (9)
Special termination benefits     4 10
Total expense 97 82 192 165
International
        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 24 23 42 40
Interest cost 28 28 48 49
Expected return on plan assets (35) (33) (61) (57)
Amortization of prior service cost/(benefit) 1 1 1 1
Amortization of experience loss 12 9 22 16
Gross total 30 28 52 49
Settlement/Curtailment (gain)/loss 3   3  
Total expense 33 28 55 49
Retiree Medical
        
Defined Benefit Plan Disclosure [Line Items]        
Service cost 11 11 23 23
Interest cost 15 21 30 41
Expected return on plan assets (5) (4) (10) (7)
Amortization of prior service cost/(benefit) (6) (6) (12) (13)
Amortization of experience loss   3   6
Gross total 15 25 31 50
Special termination benefits     4 1
Total expense $ 15 $ 25 $ 35 $ 51