SENIOR NOTES PAYABLE

12 Months Ended

Sep. 30, 2024

The following table summarizes our senior notes payable.


	September 30,
$ in millions	2024		2023
4.65% senior notes, due 2030	$	500	$	500
4.95% senior notes, due 2046	800		800
3.75% senior notes, due 2051	750		750
Total principal amount	2,050		2,050
Net unaccreted premiums	5		5
Unamortized debt issuance costs	(15)		(16)
Total senior notes payable	$	2,040	$	2,039

In March 2020, we sold $500 million in aggregate principal amount of 4.65% senior notes due April 2030 in a registered underwritten public offering. Interest on these senior notes is payable semi-annually. We may redeem some or all of these senior notes at any time prior to January 1, 2030, at a redemption price equal to the greater of (i) 100% of the principal amount of the notes redeemed, or (ii) the sum of the present values of the remaining scheduled payments of principal and interest thereon, discounted to the redemption date at a discount rate equal to a designated U.S. Treasury rate, plus 50 basis points; and on or after January 1, 2030, at 100% of the principal amount of the notes redeemed; plus, in each case, accrued and unpaid interest thereon to the redemption date.

In July 2016, we sold $300 million in aggregate principal amount of 4.95% senior notes due July 2046 in a registered underwritten public offering. In May 2017, we reopened the offering and sold, in a registered underwritten public offering, an additional $500 million in aggregate principal amount of 4.95% senior notes due July 2046. These additional senior notes were consolidated, formed into a single series, and are fully fungible with the $300 million in aggregate principal amount of 4.95% senior notes issued in July 2016. Interest on these senior notes is payable semi-annually. We may redeem some or all of these senior notes at any time prior to their maturity, at a redemption price equal to the greater of (i) 100% of the principal amount of the notes redeemed, or (ii) the sum of the present values of the remaining scheduled payments of principal and interest thereon, discounted to the redemption date at a discount rate equal to a designated U.S. Treasury rate, plus 45 basis points, plus accrued and unpaid interest thereon to the redemption date.

In April 2021, we sold $750 million in aggregate principal amount of 3.75% senior notes due April 2051 in a registered underwritten public offering. Interest on these senior notes is payable semi-annually. We may redeem some or all of these senior notes at any time prior to October 1, 2050, at a redemption price equal to the greater of (i) 100% of the principal amount of the notes redeemed, or (ii) the sum of the present values of the remaining scheduled payments of principal and interest thereon, discounted to the redemption date at a discount rate equal to a designated U.S. Treasury rate, plus 20 basis points; and on or after October 1, 2050, at 100% of the principal amount of the notes redeemed; plus, in each case, accrued and unpaid interest thereon to the redemption date.