Business Segments (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 28, 2020	Mar. 30, 2019
Segment Reporting Information [Line Items]
Net revenue	$ 19,828	$ 16,061
Operating Income (Loss)	7,038	4,174
Platform
Segment Reporting Information [Line Items]
Net revenue	15,934	13,131
Adjacent revenue
Segment Reporting Information [Line Items]
Net revenue	3,894	2,930
Internet of Things [Member]
Segment Reporting Information [Line Items]
Net revenue	1,137	1,119
Operating Income (Loss)	331	319
Client Computing Group [Member]
Segment Reporting Information [Line Items]
Net revenue	9,775	8,586
Operating Income (Loss)	4,225	3,072
Client Computing Group [Member] | Platform
Segment Reporting Information [Line Items]
Net revenue	8,712	7,824
Client Computing Group [Member] | Adjacent revenue
Segment Reporting Information [Line Items]
Net revenue	1,063	762
Data Center Group [Member]
Segment Reporting Information [Line Items]
Net revenue	6,993	4,902
Operating Income (Loss)	3,492	1,841
Data Center Group [Member] | Adjacent revenue
Segment Reporting Information [Line Items]
Net revenue	566	420
Internet of Things Group [Member]
Segment Reporting Information [Line Items]
Net revenue	883	910
Operating Income (Loss)	243	251
Mobileye [Member]
Segment Reporting Information [Line Items]
Net revenue	254	209
Operating Income (Loss)	88	68
Non-Volatile Memory Solutions Group [Member]
Segment Reporting Information [Line Items]
Net revenue	1,338	915
Operating Income (Loss)	(66)	(297)
Programmable Solutions Group [Member]
Segment Reporting Information [Line Items]
Net revenue	519	486
Operating Income (Loss)	97	89
All other [Member]
Segment Reporting Information [Line Items]
Net revenue	66	53
Operating Income (Loss)	$ (1,041)	$ (850)