Accounting Policies Supplemental Cash Flow Disclosures (Details) - USD ($) $ in Millions	Jul. 31, 2021	Jan. 30, 2021	Aug. 01, 2020	Feb. 01, 2020
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 2,375	$ 1,988	$ 2,188
Restricted Cash, Current	0	4	33
Restricted Cash, Noncurrent	32	24	20
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents end of period	2,407	2,016	2,241	$ 1,381
Reconciliation of Cash Flow Cash, Cash Equiv. and Restricted Cash to Balance Sheet
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	2,375	1,988	2,188
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents end of period	$ 2,407	$ 2,016	$ 2,241