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Capital Stock Earnings per Common Share (Details) - shares
shares in Millions
3 Months Ended 9 Months Ended
Jun. 27, 2021
Jun. 28, 2020
Jun. 27, 2021
Jun. 28, 2020
Earnings Per Share [Abstract]        
Dilutive common share equivalents included in diluted shares 16 12 19 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 3 0 1