Immaterial Restatement of Prior Period Financial Statements - Consolidated Balance Sheets and the Related Components of Stockholders' Equity (Details) - USD ($) $ in Millions	Jul. 30, 2023	Apr. 30, 2023	Oct. 30, 2022	Jul. 31, 2022	May 01, 2022	Oct. 31, 2021
Receivables:
Total receivables	$ 50,198.9		$ 42,441.6	$ 40,480.9
Total receivables - net	50,070.1		42,313.2	40,353.6
Deferred income taxes	25.3		25.5	31.5
Total assets	57,766.6		48,868.9	46,699.9
Liabilities and Stockholder's Equity
Deferred income taxes	164.5		208.5	208.0
Total liabilities	51,805.4		44,183.4	42,133.8
Stockholder's equity:
Retained earnings	3,731.2		3,305.9	3,181.8		$ 2,982.3
Total Company stockholder's equity	5,960.1		4,684.0	4,564.4
Total stockholder's equity	5,961.2	$ 5,795.0	4,685.5	4,566.1	$ 4,551.1	4,417.5
Total Liabilities and Stockholder's Equity	57,766.6		48,868.9	46,699.9
Retail notes | Unrestricted
Receivables:
Total receivables	23,424.1		22,799.0	22,208.8
Nonrelated Party
Liabilities and Stockholder's Equity
Accounts payable and accrued expenses	$ 1,080.5		957.3	969.2
Previously Reported
Receivables:
Total receivables			42,502.9	40,534.9
Total receivables - net			42,374.5	40,407.6
Deferred income taxes			23.3	29.5
Total assets			48,928.0	46,751.9
Liabilities and Stockholder's Equity
Deferred income taxes			239.4	239.1
Total liabilities			44,123.1	42,065.9
Stockholder's equity:
Retained earnings			3,425.3	3,301.7		3,091.0
Total Company stockholder's equity			4,803.4	4,684.3
Total stockholder's equity			4,804.9	4,686.0
Total Liabilities and Stockholder's Equity			48,928.0	46,751.9
Previously Reported | Retail notes | Unrestricted
Receivables:
Total receivables			22,860.3	22,262.8
Previously Reported | Nonrelated Party
Liabilities and Stockholder's Equity
Accounts payable and accrued expenses			866.1	870.2
Adjustment
Receivables:
Total receivables			(61.3)	(54.0)
Total receivables - net			(61.3)	(54.0)
Deferred income taxes			2.2	2.0
Total assets			(59.1)	(52.0)
Liabilities and Stockholder's Equity
Deferred income taxes			(30.9)	(31.1)
Total liabilities			60.3	67.9
Stockholder's equity:
Retained earnings			(119.4)	(119.9)		$ (108.7)
Total Company stockholder's equity			(119.4)	(119.9)
Total stockholder's equity			(119.4)	(119.9)
Total Liabilities and Stockholder's Equity			(59.1)	(52.0)
Adjustment | Retail notes | Unrestricted
Receivables:
Total receivables			(61.3)	(54.0)
Adjustment | Nonrelated Party
Liabilities and Stockholder's Equity
Accounts payable and accrued expenses			$ 91.2	$ 99.0