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CONTINGENCIES AND COMMITMENTS (Nuclear Insurance) (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2018 USD ($) nuclear_generating_unit
Long-term Purchase Commitment [Line Items] |
Number of nuclear generating units (nuclear generating unit) | nuclear_generating_unit | 2
Nuclear Electric Insurance Limited |
Long-term Purchase Commitment [Line Items] |
Potential premium obligation | $ 47
European Mutual Association for Nuclear Insurance |
Long-term Purchase Commitment [Line Items] |
Potential premium obligation | $ 3

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- Definition Number Of Nuclear Generating Units + References No definition available. + Details
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- Definition Potential premium obligation for nuclear facilities + References No definition available. + Details
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Balance Type: | debit
Period Type: | duration

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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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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |