Debt (Table)

9 Months Ended

Jun. 30, 2021

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

Long-term debt at June 30, 2021 and September 30, 2020 consisted of the following:

	June 30, 2021		September 30, 2020
	(In thousands)
Unsecured 0.625% Senior Notes, due 2023	$	1,100,000	$	—
Unsecured 3.00% Senior Notes, due 2027	500,000		500,000
Unsecured 2.625% Senior Notes, due 2029	300,000		300,000
Unsecured 1.50% Senior Notes, due 2031	600,000		—
Unsecured 5.95% Senior Notes, due 2034	200,000		200,000
Unsecured 5.50% Senior Notes, due 2041	400,000		400,000
Unsecured 4.15% Senior Notes, due 2043	500,000		500,000
Unsecured 4.125% Senior Notes, due 2044	750,000		750,000
Unsecured 4.30% Senior Notes, due 2048	600,000		600,000
Unsecured 4.125% Senior Notes, due 2049	450,000		450,000
Unsecured 3.375% Senior Notes, due 2049	500,000		500,000
Floating-rate term loan, due April 2022	200,000		200,000
Floating-rate Senior Notes, due 2023	1,100,000		—
Medium-term note Series A, 1995-1, 6.67%, due 2025	10,000		10,000
Unsecured 6.75% Debentures, due 2028	150,000		150,000
Finance lease obligations	18,844		8,631
Total long-term debt	7,378,844		4,568,631
Less:
Original issue discount on unsecured senior notes and debentures	2,920		583
Debt issuance cost	46,977		36,104
Current maturities	200,442		165
	$	7,128,505	$	4,531,779