Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Dec. 28, 2018	Sep. 28, 2018	Dec. 29, 2017	Sep. 29, 2017	Dec. 28, 2018	Dec. 29, 2017
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (487)	$ 511	$ (823)	$ 681	$ 24	$ (142)
Other comprehensive income, before tax:
Actuarial pension gain	1		0		1	0
Foreign currency translation adjustment	31		6		(6)	2
Net unrealized gain on derivative contracts and available-for-sale securities	7		10		6	13
Total other comprehensive income, before tax	39		16		1	15
Income tax benefit (expense) related to items of other comprehensive income, before tax	2		(3)		3	(3)
Other comprehensive income, net of tax	41		13		4	12
Total comprehensive income (loss)	$ (446)		$ (810)		$ 28	$ (130)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

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