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Derivative Instruments and Hedging Activities - Aggregate Fair Value of Companies' Derivative Instruments with Credit-Risk-Related Contingent Features (Details) $ in Millions | Dec. 31, 2020 USD ($)
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Derivatives, Fair Value [Line Items] |
Aggregate fair value – net liabilities | $ 293
Collateral posted | 212
Downgrade One Level from Current Ratings |
Derivatives, Fair Value [Line Items] |
Additional collateral | 5
Downgrade to Below Investment Grade from Current Ratings |
Derivatives, Fair Value [Line Items] |
Additional collateral | 101
Derivatives in net asset position additional collateral | 25
Additional Collateral Required Due To Loss Of Unsecured Credit |
Derivatives, Fair Value [Line Items] |
Collateral posted | 51
CECONY |
Derivatives, Fair Value [Line Items] |
Aggregate fair value – net liabilities | 277
Collateral posted | 200
CECONY | Downgrade One Level from Current Ratings |
Derivatives, Fair Value [Line Items] |
Additional collateral | 0
CECONY | Downgrade to Below Investment Grade from Current Ratings |
Derivatives, Fair Value [Line Items] |
Additional collateral | $ 85

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- Definition The additional collateral that would be required for derivative instruments that are net assets. + References No definition available. + Details
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- Definition The aggregate fair value of additional assets that would be required to be posted as collateral for derivative instruments with credit-risk-related contingent features if the credit-risk-related contingent features were triggered at the end of the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624258-113959 + Details
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- Definition The aggregate fair value of assets that are already posted, at the end of the reporting period, as collateral for derivative instruments with credit-risk-related contingent features. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624258-113959 + Details
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- Definition Fair value of credit risk derivative asset after deduction of credit risk derivative liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4K -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5708775-113959 + 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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