Summary of Significant Accounting Policies (Cash, Cash Equivalents, Restricted Cash Reconciliation) (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Feb. 01, 2020	Nov. 02, 2019	Feb. 02, 2019
Accounting Policies [Abstract]
Cash and cash equivalents	$ 4,416,124	$ 1,351,205	$ 1,142,709
Restricted cash and cash equivalents included in:
Prepaid expenses and other	85,322	10,235	10,947
Other long-term assets	50,396	49,970	49,871
Total restricted cash and cash equivalents	135,718	60,205	60,818
Total cash, cash equivalents, and restricted cash and cash equivalents	$ 4,551,842	$ 1,411,410	$ 1,203,527	$ 1,478,079