Stockholders' Equity (Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended
	May 01, 2020	May 03, 2019
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	$ 7,009
Unrealized gains (losses), net of tax provision (benefit)	(13)	$ 4
Foreign currency translation adjustments	(1)
Total other comprehensive income (loss)	(14)	4	[1]
Balance	7,428
Total
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(4)	(2)
Total other comprehensive income (loss)	(14)	4
Balance	(18)	2
Tax provision (benefit) on OCI before reclass	(2)	0
Tax (provision) benefit on amounts reclassified from AOCI	0	0
Unrealized Gain (Loss) on Forward Contracts
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	0	2
Unrealized gains (losses), net of tax provision (benefit)	(13)	4
Foreign currency translation adjustments	0
Total other comprehensive income (loss)	(13)	4
Balance	(13)	6
Tax provision (benefit) on OCI before reclass	(2)	0
Tax (provision) benefit on amounts reclassified from AOCI	0	0
Foreign Currency Translation Adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Balance	(4)	(4)
Unrealized gains (losses), net of tax provision (benefit)	0	0
Foreign currency translation adjustments	(1)
Total other comprehensive income (loss)	(1)	0
Balance	$ (5)	$ (4)

[1] Adjusted to reflect the recast of prior period information due to the Pivotal acquisition in fiscal 2020, which was accounted for as a transaction between entities under common control (refer to Note A).