PENSION AND OTHER POSTRETIREMENT BENEFITS - Cost in Net Income and Changes in Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
Oct. 31, 2021	Nov. 01, 2020	Nov. 03, 2019
Pensions
Previous Net Periodic Benefit Cost and Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net cost	$ 101	$ 143	$ 70
Retirement Benefits Adjustments Included in Other Comprehensive (Income) Loss:
Net actuarial (gain) loss	(2,821)	438	887
Amortization of actuarial loss	(256)	(249)	(143)
Amortization of prior service (cost) credit	(12)	(11)	(11)
Settlements	(22)	(26)	(3)
Total (gain) loss recognized in other comprehensive (income) loss	(3,111)	152	730
Total recognized in comprehensive (income) loss	(3,010)	295	800
OPEB
Previous Net Periodic Benefit Cost and Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income
Net cost	96	198	165
Retirement Benefits Adjustments Included in Other Comprehensive (Income) Loss:
Net actuarial (gain) loss	(671)	(136)	141
Amortization of actuarial loss	(27)	(29)	(16)
Amortization of prior service (cost) credit	4	4	72
Total (gain) loss recognized in other comprehensive (income) loss	(694)	(161)	197
Total recognized in comprehensive (income) loss	$ (598)	$ 37	$ 362

Amount recognized in net periodic benefit cost (credit) and other comprehensive (income) loss.

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Amount of net periodic benefit cost (credit) for defined benefit plan.

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Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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Amount, before tax, of increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan.

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Amount, before tax, after reclassification adjustment, of (increase) decrease in accumulated other comprehensive income for defined benefit plan.

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Amount, before tax, of gain (loss) for (increase) decrease in value of benefit obligation for change in actuarial assumptions and increase (decrease) in value of plan assets from experience different from that assumed of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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