CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 27, 2020	Mar. 29, 2019	Mar. 27, 2020	Mar. 29, 2019
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
Net sales	$ 3,195	$ 3,412	$ 6,363	$ 6,759
Cost of sales	2,166	2,294	4,304	4,527
Gross margin	1,029	1,118	2,059	2,232
Selling, general, and administrative expenses	352	373	719	762
Research, development, and engineering expenses	158	166	319	327
Acquisition and integration costs	12	7	19	12
Restructuring and other charges, net	22	42	46	117
Impairment of goodwill	900		900
Operating income (loss)	(415)	530	56	1,014
Interest income	5	4	11	9
Interest expense	(11)	(15)	(23)	(42)
Other income, net	11	1	16
Income (loss) from continuing operations before income taxes	(410)	520	60	981
Income tax expense	(42)	(91)	(489)	(169)
Income (loss) from continuing operations	(452)	429	(429)	812
Income (loss) from discontinued operations, net of income taxes	(4)	10	(1)	(97)
Net income (loss)	$ (456)	$ 439	$ (430)	$ 715
Basic earnings (loss) per share:
Income (loss) from continuing operations (in dollars per share)	$ (1.35)	$ 1.27	$ (1.28)	$ 2.39
Income (loss) from discontinued operations (in dollars per share)	(0.01)	0.03		(0.29)
Net income (loss) (in dollars per share)	(1.37)	1.30	(1.29)	2.10
Diluted earnings (loss) per share:
Income (loss) from continuing operations (in dollars per share)	(1.35)	1.26	(1.28)	2.37
Income (loss) from discontinued operations (in dollars per share)	(0.01)	0.03		(0.28)
Net income (loss) (in dollars per share)	$ (1.37)	$ 1.29	$ (1.29)	$ 2.09
Weighted-average number of shares outstanding:
Basic (in shares)	334	338	334	340
Diluted (in shares)	334	340	334	342