Capital Stock Earnings per Common Share (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2021	Mar. 29, 2020	Mar. 28, 2021	Mar. 29, 2020
Earnings Per Share [Abstract]
Dilutive common share equivalents included in diluted shares	18	12	20	13
Shares of common stock equivalents not included because the effect would be anti-dilutive or certain performance conditions were not satisfied at the end of the period	0	0	0	0