Capital Stock (Details) - USD ($)	1 Months Ended	3 Months Ended
	Nov. 30, 2019	Dec. 27, 2020	Sep. 30, 2019	May 31, 2018
Class of Stock [Line Items]
Common stock, shares issued (in shares)	10,592,000	10,592,000
Sale of stock (in dollars per share)	$ 95.00	$ 95.00
Stock repurchase program, authorized amount		$ 4,325,000		$ 500,000,000
Stock repurchase program, remaining authorized repurchase amount		366,593,000
Term Loan Agreement | Unsecured Debt
Class of Stock [Line Items]
Debt instrument, face amount	$ 975,185,000	$ 1,000,000,000	$ 1,000,000