Goodwill	6 Months Ended
	Jul. 26, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill During the first quarter of fiscal year 2021, we changed our operating segments to Graphics and Compute & Networking, as discussed in Note 15 of these Notes to Condensed Consolidated Financial Statements. As a result, our reporting units also changed, and we reassigned the goodwill balance to the new reporting units based on their relative fair values. We determined there was no goodwill impairment immediately prior to the reorganization. As of July 26, 2020, the total carrying amount of goodwill was $4.19 billion and the amount of goodwill allocated to our Graphics and Compute & Networking reporting units was $347 million and $3.85 billion, respectively. In the second quarter and first half of fiscal year 2021, goodwill increased by $3.56 billion and $3.57 billion, respectively. The increase in goodwill in the second quarter of fiscal year 2021 was due to goodwill of $3.43 billion arising from the Mellanox acquisition, and goodwill of $133 million from other acquisition activity, both of which were allocated to the Compute & Networking reporting unit.