Summary Information by Operating Segment (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 29, 2012	Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Segment Reporting Information [Line Items]
Net sales	$ 42,123	$ 37,432	$ 45,646	$ 57,594	$ 37,472	$ 35,323	$ 43,603	$ 54,512	$ 182,795	$ 170,910	$ 156,508
Operating income									52,503	48,999	55,241
Americas
Segment Reporting Information [Line Items]
Net sales									65,232	62,739	57,512
Operating income									24,316	22,817	23,414
Europe
Segment Reporting Information [Line Items]
Net sales									40,929	37,883	36,323
Operating income									14,771	13,025	14,869
Greater China
Segment Reporting Information [Line Items]
Net sales									29,846	25,417	22,533
Operating income									11,016	8,541	9,843
Japan
Segment Reporting Information [Line Items]
Net sales									14,982	13,462	10,571
Operating income									7,183	6,819	5,861
Rest of Asia Pacific
Segment Reporting Information [Line Items]
Net sales									10,344	11,181	10,741
Operating income									3,636	3,753	4,253
Retail
Segment Reporting Information [Line Items]
Net sales									21,462	20,228	18,828
Operating income									$ 4,575	$ 4,025	$ 4,613