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Benefit Plans Expected Amortization of Regulatory Assets in Next Fiscal Year (Details) $ in Millions | 12 Months Ended
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Sep. 30, 2018 USD ($)
Defined Benefit Plan Disclosure |
Prior service cost (credit) | $ (123)
Net actuarial loss | 331
Pension Benefits |
Defined Benefit Plan Disclosure |
Prior service cost (credit) | (99)
Net actuarial loss | 327
Other Post-retirement Benefits |
Defined Benefit Plan Disclosure |
Prior service cost (credit) | (24)
Net actuarial loss | $ 4

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- Definition The amounts in regulatory assets related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented. + References No definition available. + Details
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Period Type: | duration

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- Definition The amounts in regulatory assets related to prior service cost or credit expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented. + References No definition available. + Details
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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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