Segment Information - Reportable Segments (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 31, 2021	Jan. 26, 2020	Jan. 27, 2019
Segment Reporting Information [Line Items]
Revenue	$ 16,675	$ 10,918	$ 11,716
Operating income (loss)	4,532	2,846	3,804
All Other
Segment Reporting Information [Line Items]
Revenue	0	0	0
Operating income (loss)	(2,628)	(1,172)	(864)
Graphics \| Operating segments
Segment Reporting Information [Line Items]
Revenue	9,834	7,639	8,159
Operating income (loss)	4,612	3,267	3,417
Compute & Networking \| Operating segments
Segment Reporting Information [Line Items]
Revenue	6,841	3,279	3,557
Operating income (loss)	$ 2,548	$ 751	$ 1,251

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details