SUPPLEMENTAL CONSOLIDATING DATA - Balance Sheet (Details) - USD ($) $ / shares in Units, $ in Millions	Jul. 28, 2019	Apr. 28, 2019	Oct. 29, 2018	Oct. 28, 2018	Jul. 29, 2018	Apr. 29, 2018	Oct. 29, 2017
ASSETS
Cash and cash equivalents	$ 3,383			$ 3,904	$ 3,923
Marketable securities	565			490	488
Receivables from unconsolidated subsidiaries and affiliates	54			22	28
Trade accounts and notes receivable - net	6,758			5,004	6,208
Financing receivables - net	27,049			27,054	25,213
Financing receivables securitized - net	5,200			4,022	4,662
Other receivables	1,535			1,736	1,300
Equipment on operating leases - net	7,269			7,165	6,805
Inventories	6,747			6,149	6,239
Property and equipment - net	5,798			5,868	5,638
Investments in unconsolidated subsidiaries and affiliates	219			207	199
Goodwill	3,013			3,101	3,047		$ 1,033
Other intangible assets - net	1,444			1,562	1,581
Retirement benefits	1,431			1,298	737
Deferred income taxes	1,088			808	1,645
Other assets	1,977		$ 1,828	1,718	1,677
Total Assets	73,530			70,108	69,390
LIABILITIES
Short-term borrowings	11,142			11,062	11,004
Short-term securitization borrowings	5,048			3,957	4,528
Payables to unconsolidated subsidiaries and affiliates	136			129	111
Accounts payable and accrued expenses	9,390		$ 10,221	10,111	9,483
Deferred income taxes	507			556	524
Long-term borrowings	29,242			27,237	26,838
Retirement benefits and other liabilities	5,781			5,751	6,522
Total liabilities	61,246			58,803	59,010
Commitments and contingencies (Note 15)
Redeemable noncontrolling interest	14			14	14
STOCKHOLDERS' EQUITY
Common stock, $1 par value (issued shares at July 28, 2019 - 536,431,204)	$ 4,599			4,474	4,451
Common stock, par value (in dollars per share)	$ 1
Common stock, issued shares	536,431,204
Common stock in treasury	$ (17,121)			(16,312)	(15,814)
Retained earnings	29,369			27,553	26,272
Accumulated other comprehensive income (loss)	(4,581)			(4,427)	(4,553)
Total Deere & Company stockholders' equity	12,266			11,288	10,356
Noncontrolling interests	4			3	10
Total stockholders' equity	12,270	$ 11,924		11,291	10,366	$ 10,420	$ 9,560
Total Liabilities and Stockholders' Equity	73,530			70,108	69,390
Equipment Operations
ASSETS
Cash and cash equivalents	2,694			3,195	2,803
Marketable securities	5			8	11
Receivables from unconsolidated subsidiaries and affiliates	2,395			1,700	1,795
Trade accounts and notes receivable - net	1,606			1,374	1,586
Financing receivables - net	100			93	78
Financing receivables securitized - net	54			76	90
Other receivables	1,428			1,010	1,131
Inventories	6,747			6,149	6,239
Property and equipment - net	5,753			5,821	5,592
Investments in unconsolidated subsidiaries and affiliates	5,309			5,231	4,992
Goodwill	3,013			3,101	3,047
Other intangible assets - net	1,444			1,562	1,581
Retirement benefits	1,374			1,241	727
Deferred income taxes	1,579			1,503	1,984
Other assets	1,269			1,133	1,148
Total Assets	34,770			33,197	32,804
LIABILITIES
Short-term borrowings	1,372			1,434	789
Short-term securitization borrowings	53			75	90
Payables to unconsolidated subsidiaries and affiliates	136			129	111
Accounts payable and accrued expenses	9,422			9,383	9,047
Deferred income taxes	454			497	431
Long-term borrowings	5,364			4,714	5,526
Retirement benefits and other liabilities	5,685			5,660	6,430
Total liabilities	22,486			21,892	22,424
Commitments and contingencies (Note 15)
Redeemable noncontrolling interest	14			14	14
STOCKHOLDERS' EQUITY
Common stock, $1 par value (issued shares at July 28, 2019 - 536,431,204)	$ 4,599			4,474	4,451
Common stock, par value (in dollars per share)	$ 1
Common stock, issued shares	536,431,204
Common stock in treasury	$ (17,121)			(16,312)	(15,814)
Retained earnings	29,369			27,553	26,272
Accumulated other comprehensive income (loss)	(4,581)			(4,427)	(4,553)
Total Deere & Company stockholders' equity	12,266			11,288	10,356
Noncontrolling interests	4			3	10
Total stockholders' equity	12,270			11,291	10,366
Total Liabilities and Stockholders' Equity	34,770			33,197	32,804
Financial Services
ASSETS
Cash and cash equivalents	689			709	1,120
Marketable securities	560			482	477
Trade accounts and notes receivable - net	6,807			4,906	6,080
Financing receivables - net	26,949			26,961	25,135
Financing receivables securitized - net	5,146			3,946	4,572
Other receivables	126			776	176
Equipment on operating leases - net	7,269			7,165	6,805
Property and equipment - net	45			47	46
Investments in unconsolidated subsidiaries and affiliates	16			15	15
Retirement benefits	57			57	14
Deferred income taxes	72			69	68
Other assets	708			587	530
Total Assets	48,444			45,720	45,038
LIABILITIES
Short-term borrowings	9,770			9,628	10,215
Short-term securitization borrowings	4,995			3,882	4,438
Payables to unconsolidated subsidiaries and affiliates	2,341			1,678	1,766
Accounts payable and accrued expenses	1,641			2,056	1,902
Deferred income taxes	616			823	500
Long-term borrowings	23,878			22,523	21,312
Retirement benefits and other liabilities	97			91	96
Total liabilities	43,338			40,681	40,229
Commitments and contingencies (Note 15)
STOCKHOLDERS' EQUITY
Common stock, $1 par value (issued shares at July 28, 2019 - 536,431,204)	2,107			2,100	2,100
Retained earnings	3,338			3,257	3,009
Accumulated other comprehensive income (loss)	(339)			(318)	(300)
Total Deere & Company stockholders' equity	5,106			5,039	4,809
Total stockholders' equity	5,106			5,039	4,809
Total Liabilities and Stockholders' Equity	$ 48,444			$ 45,720	$ 45,038