Financial Instruments and Risk Management - Fair Value of the Partnership's Senior Notes (Parenthetical) (Details)	9 Months Ended
	Jun. 26, 2021		Sep. 26, 2020
5.5% Senior Notes due June 1, 2024 [Member]
Bank Debt and Senior Notes [Abstract]
Stated interest rate (in hundredths)	5.50%		5.50%
Maturity date	Jun. 01, 2024
5.75% Senior Notes due March 1, 2025 [Member]
Bank Debt and Senior Notes [Abstract]
Stated interest rate (in hundredths)	5.75%		5.75%
Maturity date	Mar. 01, 2025
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
5.0 % Senior Notes due June 1, 2031 [Member]
Bank Debt and Senior Notes [Abstract]
Stated interest rate (in hundredths)	5.00%	[1]	5.00%
Maturity date	Jun. 01, 2031

[1] 5.0%