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Commitments and Contingencies Commitments and Contingencies (Tables)

12 Months Ended

Sep. 30, 2019

Commitments and Contingencies Disclosure [Abstract]

Schedule of lease/leaseback future minimum payments [Table Text Block]

At September 30, 2019, the future minimum payments under leaseback obligations are shown below.

Lease/Leasebacks Minimum payments due in years ending September 30
2020		$	50
2021		207
2022		25
2023		—
2024		—
Thereafter		—
Total		$	282

Schedule of future minimum payments for membership interests subject to mandatory redemption [Table Text Block]

At September 30, 2019, the mandatory redemptions for each of the next five years are shown below:

		2020				2021				2022				2023				2024
Membership interests of variable interest entity subject to mandatory redemption		$	3			$	3			$	3			$	2			$	1

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

At September 30, 2019, the future minimum lease payments under operating leases, including purchased power agreements that are accounted for as operating leases, are shown below.

Operating Leases Minimum payments due in years ending September 30
2020		$	76
2021		75
2022		60
2023		12
2024		3
Thereafter		2
Total		$	228

Energy Prepayment Obligations

In addition to the commitments above, TVA had contractual obligations in the form of revenue discounts related to energy prepayments. TVA recognized $10 million of prepayment obligations and related interest payments of $4 million in revenue during 2019. The arrangement ceased in 2019. See Note 1 — Summary of Significant Accounting Policies — Energy Prepayment Obligations and Note 17 — Revenue.

Unfunded loan commitments

At September 30, 2019, TVA's commitments under unfunded loan commitments were $7 million for 2020. TVA has no commitments under unfunded loan commitments for 2021 through 2024.

Schedule of Future Minimum Lease Payments for Capital Leases

At September 30, 2019, the future minimum lease payments under capital leases shown below were included in Capital leases and Other long-term liabilities on TVA's Consolidated Balance Sheet.

Capital Leases Minimum payments due in years ending September 30
2020		$	53
2021		53
2022		53
2023		55
2024		51
Thereafter		418
Minimum annual payments		683
Less: amount representing interest		(495		)
Total		$	188

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Unfunded loan commitments [Table Text Block]

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Tabular disclosure of information about obligations resulting from other commitments.

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Tabular disclosure of future minimum lease payments as of the date of the latest balance sheet presented, in aggregate and for each of the five years succeeding fiscal years, with separate deductions from the total for the amount representing executor costs, including any profit thereon, included in the minimum lease payments and for the amount of the imputed interest necessary to reduce the net minimum lease payments to present value.

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Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date.

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