Summary of Significant Accounting Policies (Restricted Cash (Reconciliation of Cash and Cash Equivalents)) (Details) - USD ($) $ in Millions	Feb. 02, 2019	Feb. 03, 2018	Jan. 28, 2017	Jan. 30, 2016
Restricted Cash [Abstract]
Cash and cash equivalents	$ 891	$ 849	$ 1,046
Restricted cash included in other current assets	59	1
Restricted cash included in other non-current assets	31	181	27
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Total	$ 981	$ 1,031	$ 1,073	$ 1,048