Guarantor and Non-Guarantor Financial Information, Condensed Supplemental Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Current assets [Abstract]
Cash and cash equivalents	$ 750	$ 381
Accounts receivable	1,526	941
Intercompany receivable	0	0
Inventories	1,324	887
Prepaid expenses and other current assets	157	76
Total current assets	3,757	2,285
Property, plant and equipment	4,714	2,488
Goodwill and intangible assets	7,831	4,284
Investment in subsidiaries	0	0
Other assets	167	74
Total assets	16,469	9,131
Current liabilities [Abstract]
Accounts payable	1,159	783
Accrued expenses and other current liabilities	776	416
Intercompany payable	0	0
Current portion of long-term debt	104	38
Total current liabilities	2,039	1,237
Long-term debt	11,261	5,806
Deferred income taxes	803	365
Other long-term liabilities	748	289
Total long-term liabilities	12,812	6,460
Total liabilities	14,851	7,697
Total equity (deficit)	1,618	1,434	$ 1,015	$ 221
Total liabilities and stockholders' equity	16,469	9,131
Eliminations [Member]
Current assets [Abstract]
Cash and cash equivalents	0	0
Accounts receivable	0	0
Intercompany receivable	(2,285)	(2,252)
Inventories	0	0
Prepaid expenses and other current assets	0	0
Total current assets	(2,285)	(2,252)
Property, plant and equipment	0	0
Goodwill and intangible assets	0	0
Investment in subsidiaries	(15,751)	(8,769)
Other assets	0	0
Total assets	(18,036)	(11,021)
Current liabilities [Abstract]
Accounts payable	0	0
Accrued expenses and other current liabilities	0	0
Intercompany payable	(2,285)	(2,252)
Current portion of long-term debt	0	0
Total current liabilities	(2,285)	(2,252)
Long-term debt	0	0
Deferred income taxes	0	0
Other long-term liabilities	0	0
Total long-term liabilities	0	0
Total liabilities	(2,285)	(2,252)
Total equity (deficit)	(15,751)	(8,769)
Total liabilities and stockholders' equity	(18,036)	(11,021)
Parent [Member]
Current assets [Abstract]
Cash and cash equivalents	0	0
Accounts receivable	0	0
Intercompany receivable	503	296
Inventories	0	0
Prepaid expenses and other current assets	0	0
Total current assets	503	296
Property, plant and equipment	0	0
Goodwill and intangible assets	0	0
Investment in subsidiaries	1,918	1,513
Other assets	0	31
Total assets	2,421	1,840
Current liabilities [Abstract]
Accounts payable	0	0
Accrued expenses and other current liabilities	0	18
Intercompany payable	0	0
Current portion of long-term debt	0	0
Total current liabilities	0	18
Long-term debt	0	0
Deferred income taxes	803	365
Other long-term liabilities	0	23
Total long-term liabilities	803	388
Total liabilities	803	406
Total equity (deficit)	1,618	1,434
Total liabilities and stockholders' equity	2,421	1,840
Issuer [Member]
Current assets [Abstract]
Cash and cash equivalents	42	133
Accounts receivable	64	42
Intercompany receivable	1,401	1,907
Inventories	51	56
Prepaid expenses and other current assets	15	18
Total current assets	1,573	2,156
Property, plant and equipment	78	79
Goodwill and intangible assets	78	79
Investment in subsidiaries	12,728	6,151
Other assets	67	17
Total assets	14,524	8,482
Current liabilities [Abstract]
Accounts payable	47	42
Accrued expenses and other current liabilities	203	146
Intercompany payable	0	0
Current portion of long-term debt	99	30
Total current liabilities	349	218
Long-term debt	11,184	5,782
Deferred income taxes	0	0
Other long-term liabilities	281	163
Total long-term liabilities	11,465	5,945
Total liabilities	11,814	6,163
Total equity (deficit)	2,710	2,319
Total liabilities and stockholders' equity	14,524	8,482
Guarantor Subsidiaries [Member]
Current assets [Abstract]
Cash and cash equivalents	2	4
Accounts receivable	482	555
Intercompany receivable	0	0
Inventories	568	664
Prepaid expenses and other current assets	13	17
Total current assets	1,065	1,240
Property, plant and equipment	1,645	1,684
Goodwill and intangible assets	3,600	3,742
Investment in subsidiaries	1,105	1,105
Other assets	1	2
Total assets	7,416	7,773
Current liabilities [Abstract]
Accounts payable	329	468
Accrued expenses and other current liabilities	179	159
Intercompany payable	1,859	2,252
Current portion of long-term debt	5	8
Total current liabilities	2,372	2,887
Long-term debt	11	23
Deferred income taxes	0	0
Other long-term liabilities	62	45
Total long-term liabilities	73	68
Total liabilities	2,445	2,955
Total equity (deficit)	4,971	4,818
Total liabilities and stockholders' equity	7,416	7,773
Non-Guarantor Subsidiaries [Member]
Current assets [Abstract]
Cash and cash equivalents	706	244
Accounts receivable	980	344
Intercompany receivable	381	49
Inventories	705	167
Prepaid expenses and other current assets	129	41
Total current assets	2,901	845
Property, plant and equipment	2,991	725
Goodwill and intangible assets	4,153	463
Investment in subsidiaries	0	0
Other assets	99	24
Total assets	10,144	2,057
Current liabilities [Abstract]
Accounts payable	783	273
Accrued expenses and other current liabilities	394	93
Intercompany payable	426	0
Current portion of long-term debt	0	0
Total current liabilities	1,603	366
Long-term debt	66	1
Deferred income taxes	0	0
Other long-term liabilities	405	58
Total long-term liabilities	471	59
Total liabilities	2,074	425
Total equity (deficit)	8,070	1,632
Total liabilities and stockholders' equity	$ 10,144	$ 2,057