Capitalization (Tables)

9 Months Ended

Jun. 30, 2024

Capitalization, Long-Term Debt and Equity [Abstract]

Summary of Changes in Common Stock Equity

Summary of Changes in Common Stock Equity

	Common Stock			Paid In Capital		Earnings Reinvested in the Business		Accumulated Other Comprehensive Income (Loss)
	Shares	Amount
	(Thousands, except per share amounts)
Balance at April 1, 2024	92,032	$	92,032	$	1,045,929	$	2,090,172	$	75,340
Net Loss Available for Common Stock						(54,158)
Dividends Declared on Common Stock ($0.515 Per Share)						(47,195)
Other Comprehensive Loss, Net of Tax								(70,290)
Share-Based Payment Expense (1)				4,905
Common Stock Issued Under Stock and Benefit Plans	11	11		587
Share Repurchases Under Repurchase Plan	(431)	(431)		(4,942)		(18,435)
Balance at June 30, 2024	91,612	$	91,612	$	1,046,479	$	1,970,384	$	5,050
Balance at October 1, 2023	91,819	$	91,819	$	1,040,761	$	1,885,856	$	(55,060)
Net Income Available for Common Stock						245,134
Dividends Declared on Common Stock ($1.505 Per Share)						(138,354)
Other Comprehensive Income, Net of Tax								60,110
Share-Based Payment Expense (1)				14,262
Common Stock Issued (Repurchased) Under Stock and Benefit Plans	320	320		(2,514)
Share Repurchases Under Repurchase Plan	(527)	(527)		(6,030)		(22,252)
Balance at June 30, 2024	91,612	$	91,612	$	1,046,479	$	1,970,384	$	5,050
Balance at April 1, 2023	91,795	$	91,795	$	1,031,341	$	1,810,454	$	(54,864)
Net Income Available for Common Stock						92,620
Dividends Declared on Common Stock ($0.495 Per Share)						(45,444)
Other Comprehensive Income, Net of Tax								5,480
Share-Based Payment Expense (1)				4,009
Common Stock Issued Under Stock and Benefit Plans	9	9		502
Balance at June 30, 2023	91,804	$	91,804	$	1,035,852	$	1,857,630	$	(49,384)
Balance at October 1, 2022	91,478	$	91,478	$	1,027,066	$	1,587,085	$	(625,733)
Net Income Available for Common Stock						403,189
Dividends Declared on Common Stock ($1.445 Per Share)						(132,644)
Other Comprehensive Income, Net of Tax								576,349
Share-Based Payment Expense (1)				14,327
Common Stock Issued (Repurchased) Under Stock and Benefit Plans	326	326		(5,541)
Balance at June 30, 2023	91,804	$	91,804	$	1,035,852	$	1,857,630	$	(49,384)

(1)Paid in Capital includes compensation costs associated with performance shares and/or restricted stock awards. The expense is included within Net Income Available For Common Stock, net of tax benefits.