Discontinued Operations - Summary Information (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 27, 2019	Dec. 28, 2018
Income (loss) from discontinued operations, net of income taxes
Net sales		$ 41
Cost of sales		(50)
Operating expenses		(10)
Pre-tax loss from discontinued operations		(19)
Pre-tax loss on sale of discontinued operations		(96)
Income tax benefit		8
Income (loss) from discontinued operations, net of income taxes	$ 3	$ (107)

Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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