Guarantees (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 28, 2018		Jan. 29, 2017
Estimated product warranty liabilities
Balance at beginning of period	$ 8		$ 11
Additions	14		2
Deductions	(7)		(5)
Balance at end of period	$ 15	[1]	$ 8

[1] Refer to Note 10 of these Notes to the Consolidated Financial Statements for a discussion regarding warranties.