Separate Financial Information of Guarantor Subsidiaries - Balance Sheet (Details) - USD ($) $ in Millions	Jan. 03, 2020	Oct. 04, 2019	Jun. 28, 2019	Dec. 28, 2018	Sep. 28, 2018	Jun. 29, 2018
Current assets:
Cash and cash equivalents	$ 3,137		$ 3,455
Accounts receivable, net	1,791		1,204
Intercompany receivables	0		0
Inventories	3,122		3,283
Loans due from consolidated affiliates	0		0
Other current assets	577		535
Total current assets	8,627		8,477
Non-current assets:
Property, plant and equipment, net	2,722		2,843
Notes receivable and investments in Flash Ventures	2,321		2,791
Goodwill	10,069		10,076
Other intangible assets, net	1,311		1,711
Investments in consolidated subsidiaries	0		0
Loans due from consolidated affiliates	0		0
Other non-current assets	810		472
Total assets	25,860		26,370
Current liabilities:
Accounts payable	1,736		1,567
Accounts payable to related parties	364		331
Intercompany payables	0		0
Accrued expenses	1,559		1,296
Accrued compensation	537		347
Loans due to consolidated affiliates	0		0
Current portion of long-term debt	286		276
Total current liabilities	4,482		3,817
Non-current liabilities:
Long-term debt	9,547		10,246
Loans due to consolidated affiliates	0		0
Other liabilities	2,452		2,340
Total liabilities	16,481		16,403
Shareholders’ equity:
Total shareholders’ equity	9,379	$ 9,566	9,967	$ 10,912	$ 11,375	$ 11,531
Total liabilities and shareholders’ equity	25,860		26,370
Parent
Current assets:
Cash and cash equivalents	11		8
Accounts receivable, net	0		0
Intercompany receivables	2,617		2,409
Inventories	0		0
Loans due from consolidated affiliates	0		0
Other current assets	0		2
Total current assets	2,628		2,419
Non-current assets:
Property, plant and equipment, net	0		0
Notes receivable and investments in Flash Ventures	0		0
Goodwill	0		0
Other intangible assets, net	0		0
Investments in consolidated subsidiaries	20,637		20,772
Loans due from consolidated affiliates	0		0
Other non-current assets	56		60
Total assets	23,321		23,251
Current liabilities:
Accounts payable	0		0
Accounts payable to related parties	0		0
Intercompany payables	2,285		1,871
Accrued expenses	206		195
Accrued compensation	0		0
Loans due to consolidated affiliates	0		0
Current portion of long-term debt	251		276
Total current liabilities	2,742		2,342
Non-current liabilities:
Long-term debt	9,547		10,213
Loans due to consolidated affiliates	1,603		674
Other liabilities	50		55
Total liabilities	13,942		13,284
Shareholders’ equity:
Total shareholders’ equity	9,379		9,967
Total liabilities and shareholders’ equity	23,321		23,251
Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	786		985
Accounts receivable, net	1,172		779
Intercompany receivables	7,840		5,808
Inventories	716		990
Loans due from consolidated affiliates	0		0
Other current assets	364		251
Total current assets	10,878		8,813
Non-current assets:
Property, plant and equipment, net	820		873
Notes receivable and investments in Flash Ventures	0		0
Goodwill	374		388
Other intangible assets, net	10		23
Investments in consolidated subsidiaries	15,471		16,355
Loans due from consolidated affiliates	1,626		674
Other non-current assets	255		51
Total assets	29,434		27,177
Current liabilities:
Accounts payable	153		195
Accounts payable to related parties	364		0
Intercompany payables	4,953		3,515
Accrued expenses	837		522
Accrued compensation	356		214
Loans due to consolidated affiliates	258		50
Current portion of long-term debt	0		0
Total current liabilities	6,921		4,496
Non-current liabilities:
Long-term debt	0		0
Loans due to consolidated affiliates	0		0
Other liabilities	1,843		1,795
Total liabilities	8,764		6,291
Shareholders’ equity:
Total shareholders’ equity	20,670		20,886
Total liabilities and shareholders’ equity	29,434		27,177
Non-Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	2,340		2,462
Accounts receivable, net	619		425
Intercompany receivables	2,839		1,581
Inventories	2,472		2,438
Loans due from consolidated affiliates	258		50
Other current assets	213		282
Total current assets	8,741		7,238
Non-current assets:
Property, plant and equipment, net	1,902		1,970
Notes receivable and investments in Flash Ventures	2,321		2,791
Goodwill	9,695		9,688
Other intangible assets, net	1,301		1,688
Investments in consolidated subsidiaries	0		0
Loans due from consolidated affiliates	0		0
Other non-current assets	499		361
Total assets	24,459		23,736
Current liabilities:
Accounts payable	1,583		1,372
Accounts payable to related parties	0		331
Intercompany payables	6,058		4,412
Accrued expenses	516		579
Accrued compensation	181		133
Loans due to consolidated affiliates	0		0
Current portion of long-term debt	35		0
Total current liabilities	8,373		6,827
Non-current liabilities:
Long-term debt	0		33
Loans due to consolidated affiliates	23		0
Other liabilities	559		490
Total liabilities	8,955		7,350
Shareholders’ equity:
Total shareholders’ equity	15,504		16,386
Total liabilities and shareholders’ equity	24,459		23,736
Eliminations
Current assets:
Cash and cash equivalents	0		0
Accounts receivable, net	0		0
Intercompany receivables	(13,296)		(9,798)
Inventories	(66)		(145)
Loans due from consolidated affiliates	(258)		(50)
Other current assets	0		0
Total current assets	(13,620)		(9,993)
Non-current assets:
Property, plant and equipment, net	0		0
Notes receivable and investments in Flash Ventures	0		0
Goodwill	0		0
Other intangible assets, net	0		0
Investments in consolidated subsidiaries	(36,108)		(37,127)
Loans due from consolidated affiliates	(1,626)		(674)
Other non-current assets	0		0
Total assets	(51,354)		(47,794)
Current liabilities:
Accounts payable	0		0
Accounts payable to related parties	0		0
Intercompany payables	(13,296)		(9,798)
Accrued expenses	0		0
Accrued compensation	0		0
Loans due to consolidated affiliates	(258)		(50)
Current portion of long-term debt	0		0
Total current liabilities	(13,554)		(9,848)
Non-current liabilities:
Long-term debt	0		0
Loans due to consolidated affiliates	(1,626)		(674)
Other liabilities	0		0
Total liabilities	(15,180)		(10,522)
Shareholders’ equity:
Total shareholders’ equity	(36,174)		(37,272)
Total liabilities and shareholders’ equity	$ (51,354)		$ (47,794)