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Debt and Other Obligations (Tables)

3 Months Ended

9 Months Ended

Jun. 30, 2024

Jun. 30, 2024

Debt Disclosure [Abstract]

Debt Outstanding

Total debt outstanding at June 30, 2024, and September 30, 2023, consisted of the following:

Debt Outstanding  (in millions)
			At June 30, 2024						At September 30, 2023
Short-term debt
Short-term debt, net of discounts			$	1,112					$	432
Current maturities of power bonds issued at par			2,022						1,022
Current maturities of long-term debt of VIEs issued at par			36						35
Total current debt outstanding, net			3,170						1,489
Long-term debt
Long-term power bonds(1)			16,966						17,970
Long-term debt of VIEs, net			915						933
Unamortized discounts, premiums, issue costs, and other			(118)						(126)
Total long-term debt, net			17,763						18,777
Total debt outstanding			$	20,933					$	20,266

Note

(1) Includes total net exchange gain from currency transactions of $91 million and $109 million at June 30, 2024, and September 30, 2023, respectively.

Debt Securities Activity

Debt Securities Activity

The table below summarizes the long-term debt securities activity for the period from October 1, 2023, to June 30, 2024:

Debt Securities Activity

Date

Amount (in millions)

Redemptions/Maturities(1)

2009 Series B

December 2023

$

1

2009 Series B

June 2024

21

Total redemptions/maturities of power bonds

22

Debt of variable interest entities

17

Total redemptions/maturities of debt

$

39

Note

(1) All redemptions were at 100 percent of par.

Summary of Long-Term Credit Facilities

Summary of Long-Term Credit Facilities At June 30, 2024 (in millions)
Maturity Date						Facility Limit						Letters of Credit Outstanding						Cash Borrowings						Availability
March 2026						$	150					$	38					$	—					$	112
September 2026						1,000						85						—						915
March 2027						1,000						109						—						891
February 2028						500						214						—						286
Total						$	2,650					$	446					$	—					$	2,204

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