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Share Plans (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Dec. 27, 2024	Dec. 29, 2023
Share Based Compensation Arrangements:
Share-based compensation expense	$ 35	$ 34
Shares available for issuance	18.0
Share Based Compensation Expenses Not Recognized
Share-based compensation, share-based awards, total compensation expense not yet recognized	$ 213
Share-based compensation, share-based awards, total compensation expense not yet recognized, expected period for recognition	2 years 1 month 6 days
Employee Stock Option
Share Based Compensation Arrangements:
Share options granted	0.7
Options granted, grant-date fair value (in dollars per share)	$ 46.45
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology
Expected share price volatility (as a percent)	31.00%
Risk-free interest rate (as a percent)	4.50%
Expected annual dividend per share	$ 2.6
Expected life of options (in years)	5 years 3 months 18 days
Restricted share awards
Share Based Compensation Arrangements:
Shares granted	0.4
Shares granted, grant-date fair value (in dollars per share)	$ 153.25
Performance share awards
Share Based Compensation Arrangements:
Shares granted	0.1
Shares granted, grant-date fair value (in dollars per share)	$ 153.25

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The estimated annual dividend per share to be paid (expected dividends) to holders of the underlying shares over the option's term.

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