Summary of Significant Accounting Policies (Cash, Cash Equivalents, Restricted Cash Reconciliation) (Details) - USD ($) $ in Thousands	Jul. 31, 2021	Jan. 30, 2021	Aug. 01, 2020	Feb. 01, 2020
Accounting Policies [Abstract]
Cash and cash equivalents	$ 5,569,071	$ 4,819,293	$ 3,793,043
Restricted cash and cash equivalents included in:
Prepaid expenses and other	10,801	85,711	10,348
Other long-term assets	49,206	48,765	50,524
Total restricted cash and cash equivalents	60,007	134,476	60,872
Total cash and cash equivalents, and restricted cash and cash equivalents	$ 5,629,078	$ 4,953,769	$ 3,853,915	$ 1,411,410

Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant