Operating Segments and Geographic Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 27, 2014	Dec. 28, 2013	Dec. 29, 2012
Schedule Of Segment Reporting Information [Abstract]
Net revenue	$ 55,870	$ 52,708	$ 53,341
Operating income (loss)	15,347	12,291	14,638
PC Client Group [Member]
Schedule Of Segment Reporting Information [Abstract]
Net revenue	34,669	33,270	34,688
Operating income (loss)	14,635	11,751	13,008
Data Center Group [Member]
Schedule Of Segment Reporting Information [Abstract]
Net revenue	14,387	12,161	11,219
Operating income (loss)	7,279	5,569	5,231
Internet of Things Group [Member]
Schedule Of Segment Reporting Information [Abstract]
Net revenue	2,142	1,801	1,600
Operating income (loss)	616	550	278
Mobile and Communications Group [Member]
Schedule Of Segment Reporting Information [Abstract]
Net revenue	202	1,375	1,791
Operating income (loss)	(4,206)	(3,148)	(1,776)
Software and services operating segments [Member]
Schedule Of Segment Reporting Information [Abstract]
Net revenue	2,216	2,190	2,072
Operating income (loss)	55	24	12
All other [Member]
Schedule Of Segment Reporting Information [Abstract]
Net revenue	2,254	1,911	1,971
Operating income (loss)	$ (3,032)	$ (2,455)	$ (2,115)