Reconciliation of Weighted Average Number of Common and Common Equivalent Shares Outstanding and Awards Excluded from Diluted Earnings Per Share Calculation (Details) - shares shares in Millions	3 Months Ended			9 Months Ended
	Jun. 27, 2020		Jun. 29, 2019	Jun. 27, 2020		Jun. 29, 2019
Shares (in millions):
Weighted average number of common and common equivalent shares outstanding (basic)	1,809		1,802	1,807		1,607
Weighted average dilutive impact of Awards(1)	0	[1]	12	0	[1]	9
Weighted average number of common and common equivalent shares outstanding (diluted)	1,809		1,814	1,807		1,616
Awards excluded from diluted earnings per share	24		4	21		10

[1] Amounts exclude all potential common and common equivalent shares for periods when there is a net loss from continuing operations.