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Debt and Other Obligations Debt and Other Obligations - Put and Call Options (Details) $ in Millions | 12 Months Ended
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Sep. 30, 2021 USD ($)
PARRS 1998 Series D Bond |
Debt Instrument |
Amount of redeemable bond issues outstanding | $ 256
PARRS interest rate prior to rate reset | 6.75%
PARRS interest rate after rate reset | 2.134%
Amount of bonds redeemed | $ 318
PARRS 1999 Series A Bond |
Debt Instrument |
Amount of redeemable bond issues outstanding | $ 208
PARRS interest rate prior to rate reset | 6.50%
PARRS interest rate after rate reset | 2.216%
Amount of bonds redeemed | $ 316

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- Definition The amount of bonds redeemed. + References No definition available. + Details
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- Definition Amount of redeemable bond issues outstanding + References No definition available. + Details
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Balance Type: | credit
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- Definition The PARRS interest rate after rate reset. + References No definition available. + Details
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- Definition The PARRS interest rate prior to rate reset. + References No definition available. + Details
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Namespace Prefix: | tve_
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Balance Type: | na
Period Type: | instant

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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