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FHLBNY ADVANCES - Narrative (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Prepayments penalty expenses | $ 0 | $ 0
FHLBNY advances with an overnight contractual maturity | 0 | 0
Federal Home Loan Bank of New York |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Borrowings from the FHLBNY | 1,310,000,000 | 1,130,000,000
Maximum borrowing amount from FHLBNY term advances | 1,190,000,000 |
Borrowings | 4,090,000,000.00 | $ 4,130,000,000
Federal Home Loan Bank, Advances, Callable Option [Member] | Federal Home Loan Bank of New York |  |
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] |  |
Borrowings total | $ 0 |

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- Definition Amount of overnight borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages. + References No definition available. + Details
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- Definition Maximum amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions. + References No definition available. + Details
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- Definition Amount of Federal Home Loan Bank (FHLBank) advances to member financial institutions. + References No definition available. + Details
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- Definition Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13(3)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 470 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480876/942-470-45-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22 (b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
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- Definition Amount of advances outstanding made and reported by Federal Home Loan Bank (FHLBank) in excess of one billion U.S. dollars per borrower. + References No definition available. + Details
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- Definition Amount of cash outflow for repayment of Federal Home Loan Bank (FHLBank) borrowing, classified as financing activity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 15 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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