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Pension and Retiree Medical Benefits Net Periodic Benefit Cost (Details) - USD ($)
$ in Millions
 3 Months Ended 8 Months Ended
Sep. 07, 2019
Sep. 08, 2018
Sep. 07, 2019
Sep. 08, 2018
Domestic Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Service Cost $ 87 $ 99 $ 263 $ 298
Defined Benefit Plan, Interest Cost 125 111 376 333
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (205) (218) (617) (653)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 2 1 7 2
Defined Benefit Plan, Amortization of Gain (Loss) 37 41 111 124
Defined Benefit Plan Period Gross 46 34 140 104
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment 15 7 15 7
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 5 0 0 3
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) 66 41 155 114
Foreign Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Service Cost 18 23 49 63
Defined Benefit Plan, Interest Cost 24 23 64 63
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (46) (50) (124) (134)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 0 0 0 0
Defined Benefit Plan, Amortization of Gain (Loss) 8 12 21 31
Defined Benefit Plan Period Gross 4 8 10 23
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment 3 2 3 2
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 0 0 0 1
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) 7 10 13 26
Retiree Medical Plan [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Service Cost 5 7 16 22
Defined Benefit Plan, Interest Cost 9 8 25 24
Defined Benefit Plan, Expected Return (Loss) on Plan Assets (4) (4) (12) (13)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) (4) (5) (13) (14)
Defined Benefit Plan, Amortization of Gain (Loss) (7) (2) (19) (7)
Defined Benefit Plan Period Gross (1) 4 (3) 12
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement and Curtailment 0 0 0 0
Defined Benefit Plan, Cost of Providing Special and Contractual Termination Benefits 0 0 0 0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) $ (1) $ 4 $ (3) $ 12