INVENTORIES (Details) - USD ($) $ in Millions	12 Months Ended
Nov. 01, 2020	Oct. 31, 2021
INVENTORIES
Gross inventories on LIFO basis expressed as percentage of worldwide gross inventories at FIFO	52.00%	54.00%
Pretax favorable income effect from the liquidation of LIFO inventory	$ 33
Raw materials and supplies	1,995	$ 3,524
Work-in-process	648	994
Finished goods and parts	4,006	4,373
Total FIFO value	6,649	8,891
Less adjustment to LIFO value	1,650	2,110
Inventories	$ 4,999	$ 6,781

The effect of liquidating LIFO (last in first out) inventory layers on income.

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The amount of FIFO (first in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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Carrying amount, net of valuation reserves and adjustments, as of the balance sheet date of merchandise or goods held by the company that are readily available for sale.

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Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Aggregated amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. This amount is net of valuation reserves and adjustments.

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Carrying amount, net of reserves and adjustments, as of the balance sheet date of merchandise or goods which are partially completed. This inventory is generally comprised of raw materials, labor and factory overhead costs, which require further materials, labor and overhead to be converted into finished goods, and which generally require the use of estimates to determine percentage complete and pricing.

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The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

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