PENSION AND OTHER POSTRETIREMENT BENEFITS - Components of Net Periodic Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 27, 2019	Jan. 28, 2018
Net Periodic Cost
Location of costs excluding the service component	us-gaap:OtherCostOfOperatingRevenue	us-gaap:OtherCostOfOperatingRevenue
Pensions
Net Periodic Cost
Service cost	$ 66	$ 72
Interest cost	111	98
Expected return on plan assets	(200)	(194)
Amortization of actuarial (gain) loss	35	61
Amortization of prior service (credit) cost	3	3
Net cost	15	40
Employer Contributions
Defined benefit plan employer contributions	17
Defined benefit plan employer contributions expected for the remainder of the fiscal year	52
OPEB
Net Periodic Cost
Service cost	10	11
Interest cost	54	48
Expected return on plan assets	(9)	(5)
Amortization of actuarial (gain) loss	5	16
Amortization of prior service (credit) cost	(18)	(19)
Net cost	42	$ 51
Employer Contributions
Defined benefit plan employer contributions	36
Defined benefit plan employer contributions expected for the remainder of the fiscal year	$ 105