Summary of Significant Accounting Policies (Restricted Cash Reconciliation) (Details) - USD ($) $ in Thousands	Aug. 01, 2020	Feb. 01, 2020	Aug. 03, 2019	Feb. 02, 2019
Accounting Policies [Abstract]
Cash and cash equivalents	$ 3,793,043	$ 1,351,205	$ 1,382,025
Restricted cash and cash equivalents included in:
Prepaid expenses and other	10,348	10,235	11,048
Other long-term assets	50,524	49,970	50,328
Total restricted cash and cash equivalents	60,872	60,205	61,376
Total cash, cash equivalents, and restricted cash and cash equivalents	$ 3,853,915	$ 1,411,410	$ 1,443,401	$ 1,478,079