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PENSION AND OTHER POSTRETIREMENT BENEFITS - Components of Benefit Costs (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Apr. 30, 2017
May 01, 2016
Apr. 30, 2017
May 01, 2016
Pensions        
Net Periodic Cost        
Service cost $ 67 $ 62 $ 135 $ 126
Interest cost 90 97 180 195
Expected return on plan assets (197) (194) (394) (387)
Amortization of actuarial (gain) loss 61 52 121 104
Amortization of prior service (credit) cost 3 4 6 8
Settlements/curtailments 1 2 1 9
Net cost 25 23 49 55
Defined benefit plan employer contributions     33  
Defined benefit plan employer contributions expected for the remainder of the fiscal year     30  
Health Care and Life Insurance        
Net Periodic Cost        
Service cost 11 10 21 19
Interest cost 49 51 98 102
Expected return on plan assets (5) (9) (9) (18)
Amortization of actuarial (gain) loss 24 18 49 37
Amortization of prior service (credit) cost (19) (20) (38) (39)
Net cost $ 60 $ 50 121 $ 101
Defined benefit plan employer contributions     19  
Defined benefit plan employer contributions expected for the remainder of the fiscal year     $ 19