Financial Instruments and Risk Management - Fair Value of the Partnership's Senior Notes (Parenthetical) (Details)	3 Months Ended	12 Months Ended
	Dec. 30, 2023	Sep. 30, 2023	Dec. 28, 2022
Bank Debt and Senior Notes [Abstract]
Stated interest rate (in hundredths)			5.50%
5.875% Senior Notes due March 1, 2027 [Member]
Bank Debt and Senior Notes [Abstract]
Stated interest rate (in hundredths)	5.875%	5.875%
Maturity date	Mar. 01, 2027	Mar. 01, 2027
5.00% Senior Notes due June 1, 2031 [Member]
Bank Debt and Senior Notes [Abstract]
Stated interest rate (in hundredths)	5.00%	5.00%
Maturity date	Jun. 01, 2031	Jun. 01, 2031
5.50% Green Bonds Due October 1, 2028 through October 1, 2033 [Member]
Bank Debt and Senior Notes [Abstract]
Stated interest rate (in hundredths)	5.50%	5.50%
Maturity date	Oct. 01, 2028	Oct. 01, 2028