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Derivative and Hedging Activities - Narrative (Details) | Dec. 31, 2020 USD ($) counterparty derivative | Dec. 31, 2019 USD ($) derivative
--- | --- | ---
Derivative [Line Items] |  |
Cash collateral for borrowed securities | $ 0 | $ 0
Gain (loss) included in accumulated other comprehensive income to net income (loss) during the next 12 months | $ (8,000,000) |
Credit risk |  |
Derivative [Line Items] |  |
Number of counterparties in hedge facility | counterparty | 7 |
Designated as hedging instrument |  |
Derivative [Line Items] |  |
Number of derivative instruments | derivative | 0 | 0

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- Definition Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.1) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.(a),2) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition The estimated net amount of unrealized gains or losses on price risk cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121549185&loc=d3e80748-113994 + Details
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