Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Consolidated Statements of Income (Unaudited) [Abstract]
Net sales	$ 1,937	$ 2,072	$ 5,859	$ 5,815
Costs and expenses:
Cost of goods sold	1,557	1,690	4,754	4,733
Selling, general and administrative	125	119	392	366
Amortization of intangibles	38	40	119	116
Restructuring and impairment charges	2	7	18	33
Operating income	215	216	576	567
Other expense, net	136	3	159	17
Interest expense, net	71	67	201	195
Income before income taxes	8	146	216	355
Income tax expense (benefit)	(5)	36	41	(8)
Net income	$ 13	$ 110	$ 175	$ 363
Net income per share:
Basic (in dollars per share)	$ 0.10	$ 0.84	$ 1.34	$ 2.76
Diluted (in dollars per share)	$ 0.10	$ 0.81	$ 1.31	$ 2.67
Outstanding weighted-average shares:
Basic (in shares)	131.5	131.7	131.0	131.3
Diluted (in shares)	134.2	135.4	134.0	135.8