XML 52 R36.htm IDEA: XBRL DOCUMENT
v3.26.1

Cash and Due from Banks (Details) - USD ($) $ in Billions | 3 Months Ended
--- | ---
Mar. 31, 2026 | Mar. 31, 2025
Cash and Cash Equivalents [Abstract] |  |
Average balance maintained | $ 1.4 | $ 1.4

X
- Definition Average amount of collected cash balances with commercial banks the Federal Home Loan Banks (FHLBanks) maintain in return for certain services. + References No definition available. + Details
Name: | us-gaap_AverageCollectedCashBalancesWithCommercialBanksFederalHomeLoanBank
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CashAndCashEquivalentsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration