FINANCIAL SERVICES - DFS Debt Narrative (Details)				12 Months Ended
	Oct. 27, 2021 EUR (€)	Jun. 24, 2020 EUR (€)	Oct. 17, 2019 EUR (€)	Jan. 28, 2022 USD ($) facility	Aug. 07, 2020 agreement	Apr. 09, 2020 USD ($)	Mar. 20, 2019 USD ($)	Jun. 22, 2016 USD ($)	Jun. 01, 2016 USD ($)
U.S.
Debt Instrument [Line Items]
Number of asset-based financing facilities | facility				2
Note payable
Debt Instrument [Line Items]
Aggregate principal amount				$ 250,000,000
Note payable | Mexican Interbank Equilibrium Interest Rate | Mexico, Pesos
Debt Instrument [Line Items]
Basis spread on variable rate				3.37%
Secured Debt | Asset-based financing and securitization facilities | U.S. | Finance Leases and Revolving Loan Portfolio Segments
Debt Instrument [Line Items]
Total debt capacity				$ 4,500,000,000
Secured Debt | Asset-based financing and securitization facilities | International | Fixed-term
Debt Instrument [Line Items]
Total debt capacity				$ 892,000,000
Secured Debt | Fixed-term securitization offerings | Minimum
Debt Instrument [Line Items]
Interest rate				0.18%
Secured Debt | Fixed-term securitization offerings | Maximum
Debt Instrument [Line Items]
Interest rate				5.92%
Secured Debt | Other borrowings | Canada
Debt Instrument [Line Items]
Total debt capacity				$ 353,000,000
Secured Debt | Other borrowings | Europe
Debt Instrument [Line Items]
Total debt capacity				669,000,000
Secured Debt | Other borrowings | Australia and New Zealand
Debt Instrument [Line Items]
Total debt capacity				$ 316,000,000
Unsecured Debt
Debt Instrument [Line Items]
Aggregate principal amount						$ 2,300,000,000	$ 4,500,000,000	$ 3,300,000,000	$ 20,000,000,000
Unsecured Debt | Mexico
Debt Instrument [Line Items]
Number of credit agreements | agreement					2
Unsecured Debt | Dell Bank Bonds
Debt Instrument [Line Items]
Interest rate	0.50%	1.625%	0.625%
Aggregate principal amount | €	€ 500,000,000	€ 500,000,000	€ 500,000,000
Debt instrument, term	5 years	4 years	3 years