FINANCIAL SERVICES - Schedule of Financing Receivables Held by the Consolidated VIEs (Details) - USD ($) $ in Millions	May 01, 2020	Jan. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assets held by consolidated VIEs, net	$ 120,236	$ 118,861
Variable Interest Entity, Primary Beneficiary
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assets held by consolidated VIEs, net	7,012	6,664
Short-term, net | Variable Interest Entity, Primary Beneficiary
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assets held by consolidated VIEs, net	3,384	3,316
Long-term, net | Variable Interest Entity, Primary Beneficiary
Accounts, Notes, Loans and Financing Receivable [Line Items]
Assets held by consolidated VIEs, net	$ 3,628	$ 3,348