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PENSION AND OTHER POSTRETIREMENT BENEFITS - Other (Details) - USD ($)
$ in Millions
Nov. 03, 2019
Oct. 28, 2018
Amounts recognized in balance sheet    
Noncurrent asset $ 840 $ 1,298
Pensions    
Amounts recognized in balance sheet    
Noncurrent asset 840 1,298
Current liability (56) (36)
Noncurrent liability (1,010) (768)
Funded (unfunded) status (226) 494
Amounts recognized in accumulated other comprehensive income - pretax    
Net actuarial loss 4,312 3,571
Prior service cost (credit) 32 43
Total 4,344 3,614
Accumulated Benefit Obligations - Additional Disclosures    
Accumulated benefit obligation for pension plans 13,430 11,485
Accumulated Benefit Obligations in Excess of Plan Assets    
Defined benefit plan, pension plans with accumulated benefit obligations in excess of plan assets, accumulated benefit obligations 1,836 1,710
Defined benefit plan, pension plans with accumulated benefit obligations in excess of plan assets, plan assets 924 1,015
Projected Pension Benefit Obligations in Excess of Plan Assets    
Defined benefit plan, pension plans with projected benefit obligations in excess of plan assets, projected benefit obligations 10,097 1,833
Defined benefit plan, pension plans with projected benefit obligations in excess of plan assets, plan assets 9,031 1,029
Employer Contributions    
Expected future employer contributions towards defined benefit plans 80  
Benefits expected to be paid from the benefit plans, which reflect expected future years of service    
Defined benefit plan, expected future benefit payments, next twelve months 731  
Defined benefit plan, expected future benefit payments, year two 719  
Defined benefit plan, expected future benefit payments, year three 703  
Defined benefit plan, expected future benefit payments, year four 698  
Defined benefit plan, expected future benefit payments, year five 699  
Defined benefit plan, expected future benefit payments, five fiscal years thereafter 3,469  
OPEB    
Amounts recognized in balance sheet    
Current liability (35) (34)
Noncurrent liability (4,651) (4,719)
Funded (unfunded) status (4,686) (4,753)
Amounts recognized in accumulated other comprehensive income - pretax    
Net actuarial loss 912 787
Prior service cost (credit) (28) (100)
Total 884 $ 687
Employer Contributions    
Expected future employer contributions towards defined benefit plans 445  
Benefits expected to be paid from the benefit plans, which reflect expected future years of service    
Defined benefit plan, expected future benefit payments, next twelve months 308  
Defined benefit plan, expected future benefit payments, year two 307  
Defined benefit plan, expected future benefit payments, year three 309  
Defined benefit plan, expected future benefit payments, year four 310  
Defined benefit plan, expected future benefit payments, year five 313  
Defined benefit plan, expected future benefit payments, five fiscal years thereafter 1,566  
OPEB | U.S.    
Employer Contributions    
Expected future employer contributions towards defined benefit plans $ 300