Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 28, 2019	Jun. 29, 2019	Mar. 30, 2019	Dec. 29, 2018	Sep. 29, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 30, 2017	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Consolidated Statements of Income [Abstract]
Net sales	$ 3,019	$ 1,937	$ 1,950	$ 1,972	$ 2,054	$ 2,072	$ 1,967	$ 1,776	$ 8,878	$ 7,869	$ 7,095
Costs and expenses:
Cost of goods sold	2,511	1,551	1,578	1,619	1,705	1,690	1,596	1,447	7,259	6,438	5,691
Selling, general and administrative									583	480	494
Amortization of intangibles									194	154	154
Restructuring and transaction activities									(132)	36	24
Operating income									974	761	732
Other expense, net									155	25	14
Interest expense, net									329	259	269
Income before income taxes									490	477	449
Income tax expense (benefit)									86	(19)	109
Net income	$ 229	$ 13	$ 74	$ 88	$ 133	$ 110	$ 90	$ 163	$ 404	$ 496	$ 340
Net income per share:
Basic (see Note 13) (in dollars per share)	$ 1.74	$ 0.10	$ 0.57	$ 0.67	$ 1.01	$ 0.83	$ 0.69	$ 1.24	$ 3.08	$ 3.77	$ 2.66
Diluted (see Note 13) (in dollars per share)	$ 1.69	$ 0.10	$ 0.55	$ 0.66	$ 0.99	$ 0.81	$ 0.66	$ 1.20	$ 3.00	$ 3.67	$ 2.56