Federal Home Loan Bank of San Francisco

$ Overview Financials Valuation SEC Filings Company Website

2024 Q3 Form 10-Q Financial Statement

#000131694424000161 Filed on August 02, 2024

Income Statement

Concept	2024 Q3	2024 Q2

Balance Sheet

Concept	2024 Q3	2024 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents		$6.000M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment
YoY Change
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets
YoY Change
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets		$86.33B
YoY Change		-24.85%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities
YoY Change
LONG-TERM LIABILITIES
Long-Term Debt
YoY Change
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities
YoY Change
TOTAL LIABILITIES
Total Short-Term Liabilities
Total Long-Term Liabilities
Total Liabilities		$79.43B
YoY Change		-26.53%
SHAREHOLDERS EQUITY
Retained Earnings		$4.396B
YoY Change		5.12%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity		$6.901B
YoY Change
Total Liabilities & Shareholders Equity		$86.33B
YoY Change		-24.85%

Cashflow Statement

Concept	2024 Q3	2024 Q2

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	28000000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	450006000000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Advances ProceedsFromFederalHomeLoanBankAdvances	989860000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss Statement Of Financial Position Extensible List DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLossStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2023#InterestReceivable
CY2023Q4	us-gaap	Hedged Liability Statement Of Financial Position Extensible Enumeration HedgedLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#FederalHomeLoanBankConsolidatedObligationsBonds
CY2024Q2	us-gaap	Hedged Liability Statement Of Financial Position Extensible Enumeration HedgedLiabilityStatementOfFinancialPositionExtensibleEnumeration	http://fasb.org/us-gaap/2023#FederalHomeLoanBankConsolidatedObligationsBonds
CY2024Q2	fhlbsf	Derivatives Additional Net Credit Exposure DerivativesAdditionalNetCreditExposure	563000000	usd
CY2024Q2	us-gaap	Interest Expense InterestExpense	1051000000	usd
CY2023Q2	us-gaap	Interest Expense InterestExpense	1541000000	usd
	us-gaap	Interest Expense InterestExpense	2127000000	usd
	us-gaap	Interest Expense InterestExpense	2910000000	usd
CY2024Q2	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	29000000	usd
CY2023Q2	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	42000000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	128000000	usd
	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	10000000	usd
CY2024Q2	us-gaap	Comprehensive Income Loss Net Of Federal Home Loan Bank Assessments Attributable To Parent ComprehensiveIncomeLossNetOfFederalHomeLoanBankAssessmentsAttributableToParent	115000000	usd
CY2023Q2	us-gaap	Comprehensive Income Loss Net Of Federal Home Loan Bank Assessments Attributable To Parent ComprehensiveIncomeLossNetOfFederalHomeLoanBankAssessmentsAttributableToParent	163000000	usd
	us-gaap	Comprehensive Income Loss Net Of Federal Home Loan Bank Assessments Attributable To Parent ComprehensiveIncomeLossNetOfFederalHomeLoanBankAssessmentsAttributableToParent	338000000	usd
	us-gaap	Comprehensive Income Loss Net Of Federal Home Loan Bank Assessments Attributable To Parent ComprehensiveIncomeLossNetOfFederalHomeLoanBankAssessmentsAttributableToParent	326000000	usd
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	8072000000	usd
CY2023Q2	us-gaap	Comprehensive Income Loss Net Of Federal Home Loan Bank Assessments Attributable To Parent ComprehensiveIncomeLossNetOfFederalHomeLoanBankAssessmentsAttributableToParent	163000000	usd
CY2023Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	317000000	usd
CY2023Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	668000000	usd
CY2023Q2	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	1056000000	usd
CY2023Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	65000000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	6763000000	usd
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	6780000000	usd
CY2024Q2	us-gaap	Comprehensive Income Loss Net Of Federal Home Loan Bank Assessments Attributable To Parent ComprehensiveIncomeLossNetOfFederalHomeLoanBankAssessmentsAttributableToParent	115000000	usd
CY2024Q2	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	507000000	usd
CY2024Q2	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	450000000	usd
CY2024Q2	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	51000000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	6901000000	usd
CY2022Q4	us-gaap	Stockholders Equity StockholdersEquity	7723000000	usd
	us-gaap	Comprehensive Income Loss Net Of Federal Home Loan Bank Assessments Attributable To Parent ComprehensiveIncomeLossNetOfFederalHomeLoanBankAssessmentsAttributableToParent	326000000	usd
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2522000000	usd
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	2429000000	usd
	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	1251000000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	128000000	usd
CY2023Q2	us-gaap	Stockholders Equity StockholdersEquity	6763000000	usd
CY2023Q4	us-gaap	Stockholders Equity StockholdersEquity	6668000000	usd
	us-gaap	Comprehensive Income Loss Net Of Federal Home Loan Bank Assessments Attributable To Parent ComprehensiveIncomeLossNetOfFederalHomeLoanBankAssessmentsAttributableToParent	338000000	usd
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	989000000	usd
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	954000000	usd
	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	36000000	usd
	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	104000000	usd
CY2024Q2	us-gaap	Stockholders Equity StockholdersEquity	6901000000	usd
	us-gaap	Net Income Loss Attributable To Parent Net Of Federal Home Loan Bank Assessments NetIncomeLossAttributableToParentNetOfFederalHomeLoanBankAssessments	210000000	usd
	us-gaap	Net Income Loss Attributable To Parent Net Of Federal Home Loan Bank Assessments NetIncomeLossAttributableToParentNetOfFederalHomeLoanBankAssessments	316000000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	2000000	usd
	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	63000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-1000000	usd
	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	0	usd
	us-gaap	Increase Decrease In Fair Value Adjustments On Assets And Liabilities Carried At Fair Value Under Fair Value Option IncreaseDecreaseInFairValueAdjustmentsOnAssetsAndLiabilitiesCarriedAtFairValueUnderFairValueOption	-11000000	usd
	us-gaap	Increase Decrease In Fair Value Adjustments On Assets And Liabilities Carried At Fair Value Under Fair Value Option IncreaseDecreaseInFairValueAdjustmentsOnAssetsAndLiabilitiesCarriedAtFairValueUnderFairValueOption	-15000000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-298000000	usd
	us-gaap	Unrealized Gain Loss On Derivatives UnrealizedGainLossOnDerivatives	-109000000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3000000	usd
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-3000000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	17000000	usd
	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	-148000000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	1000000	usd
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	39000000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-113000000	usd
	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	285000000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	-5000000	usd
	us-gaap	Increase Decrease In Other Operating Liabilities IncreaseDecreaseInOtherOperatingLiabilities	48000000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	177000000	usd
	us-gaap	Adjustments To Reconcile Net Income Loss To Cash Provided By Used In Operating Activities AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities	632000000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	387000000	usd
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	948000000	usd
	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-963000000	usd
	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-311000000	usd
	us-gaap	Proceeds From Payments For Securities Purchased Under Agreements To Resell ProceedsFromPaymentsForSecuritiesPurchasedUnderAgreementsToResell	350000000	usd
	us-gaap	Proceeds From Payments For Securities Purchased Under Agreements To Resell ProceedsFromPaymentsForSecuritiesPurchasedUnderAgreementsToResell	-5990000000	usd
	us-gaap	Increase Decrease In Federal Funds Sold IncreaseDecreaseInFederalFundsSold	1416000000	usd
	us-gaap	Increase Decrease In Federal Funds Sold IncreaseDecreaseInFederalFundsSold	-4866000000	usd
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	131000000	usd
	us-gaap	Proceeds From Sale And Maturity Of Available For Sale Securities ProceedsFromSaleAndMaturityOfAvailableForSaleSecurities	164000000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1389000000	usd
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	1311000000	usd
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	192000000	usd
	us-gaap	Proceeds From Sale And Maturity Of Held To Maturity Securities ProceedsFromSaleAndMaturityOfHeldToMaturitySecurities	195000000	usd
	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	443488000000	usd
	us-gaap	Payments For Federal Home Loan Bank Advances PaymentsForFederalHomeLoanBankAdvances	971175000000	usd
	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	28000000	usd
	us-gaap	Proceeds From Principal Repayments On Loans And Leases Held For Investment ProceedsFromPrincipalRepaymentsOnLoansAndLeasesHeldForInvestment	28000000	usd
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	0	usd
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	1000000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	6283000000	usd
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	6593000000	usd
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-160000000	usd
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-181000000	usd
	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	0	usd
	us-gaap	Increase Decrease In Loans From Other Federal Home Loan Banks IncreaseDecreaseInLoansFromOtherFederalHomeLoanBanks	250000000	usd
	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	-11000000	usd
	us-gaap	Payments For Proceeds From Hedge Financing Activities PaymentsForProceedsFromHedgeFinancingActivities	-8000000	usd
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	26380000000	usd
	us-gaap	Proceeds From Issuance Of Other Long Term Debt ProceedsFromIssuanceOfOtherLongTermDebt	67230000000	usd
	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	40037000000	usd
	us-gaap	Proceeds From Other Short Term Debt ProceedsFromOtherShortTermDebt	71132000000	usd
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	35814000000	usd
	us-gaap	Repayments Of Other Long Term Debt RepaymentsOfOtherLongTermDebt	63226000000	usd
	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	36877000000	usd
	us-gaap	Repayments Of Other Short Term Debt RepaymentsOfOtherShortTermDebt	82303000000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	989000000	usd
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2522000000	usd
	us-gaap	Repayments Of Mandatory Redeemable Capital Securities RepaymentsOfMandatoryRedeemableCapitalSecurities	177000000	usd
	us-gaap	Repayments Of Mandatory Redeemable Capital Securities RepaymentsOfMandatoryRedeemableCapitalSecurities	413000000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	954000000	usd
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2429000000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	104000000	usd
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	128000000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-6669000000	usd
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-7538000000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	1000000	usd
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	3000000	usd
CY2023Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	5000000	usd
CY2022Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	9000000	usd
CY2024Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	6000000	usd
CY2023Q2	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	12000000	usd
	us-gaap	Interest Paid Net InterestPaidNet	2193000000	usd
	us-gaap	Interest Paid Net InterestPaidNet	2762000000	usd
	us-gaap	Payments For Affordable Housing Programs PaymentsForAffordableHousingPrograms	24000000	usd
	us-gaap	Payments For Affordable Housing Programs PaymentsForAffordableHousingPrograms	17000000	usd
	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	0	usd
	us-gaap	Debt Securities Held To Maturity Transfer Amount DebtSecuritiesHeldToMaturityTransferAmount	2000000	usd
	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	36000000	usd
	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	1251000000	usd
	us-gaap	Use Of Estimates UseOfEstimates	<div style="margin-bottom:3pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Use of Estimates.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> The preparation of financial statements in accordance with accounting principles generally accepted in the United States of America (U.S. GAAP) requires management to make a number of judgments, estimates, and assumptions that may affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities, and the reported amounts of income, expenses, gains, and losses during the reporting period. The most significant of these estimates include:</span></div><div style="padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;padding-left:14.15pt">accounting for hedging activities; and </span></div><div style="margin-bottom:12pt;padding-left:36pt;text-indent:-18pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">•</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%;padding-left:14.15pt">estimating fair values of investments classified as trading and available-for-sale (AFS), derivatives and associated hedged items carried at fair value in accordance with the accounting for derivative instruments and associated hedging activities, and financial instruments carried at fair value under the fair value option</span></div><div style="margin-bottom:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Actual results could differ significantly from these estimates.</span></div><div style="margin-bottom:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">Termination of Long-Term Funding Arrangement</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">. The Bank recognized $30 million as income in the first six months of 2024 in connection with the termination of a long-term funding arrangement entered into with a member borrower in 2017.</span></div>
	fhlbsf	Termination Of Long Term Funding Arrangement TerminationOfLongTermFundingArrangement	30000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	19059000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	28000000	usd
CY2024Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	104000000	usd
CY2024Q2	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	36000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	19099000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	18105000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	31000000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	43000000	usd
CY2023Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	103000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	18014000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	76000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Accrued Interest After Allowance For Credit Loss DebtSecuritiesAvailableForSaleAccruedInterestAfterAllowanceForCreditLoss	68000000	usd
CY2024Q2	fhlbsf	Availableforsale Securities Premiums AvailableforsaleSecuritiesPremiums	55000000	usd
CY2024Q2	fhlbsf	Availableforsale Securities Discounts AvailableforsaleSecuritiesDiscounts	-184000000	usd
CY2023Q4	fhlbsf	Availableforsale Securities Premiums AvailableforsaleSecuritiesPremiums	58000000	usd
CY2023Q4	fhlbsf	Availableforsale Securities Discounts AvailableforsaleSecuritiesDiscounts	-191000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	1702000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	6000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	1764000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	30000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	3466000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	36000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	7547000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	46000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	3808000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	57000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	11355000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	103000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	19059000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	19099000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Excluding Accrued Interest Before Allowance For Credit Loss DebtSecuritiesAvailableForSaleAmortizedCostExcludingAccruedInterestBeforeAllowanceForCreditLoss	18105000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Excluding Accrued Interest DebtSecuritiesAvailableForSaleExcludingAccruedInterest	18014000000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	1655000000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	2000000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	27000000	usd
CY2024Q2	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1630000000	usd
CY2023Q4	us-gaap	Debt Securities Held To Maturity Excluding Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityExcludingAccruedInterestAfterAllowanceForCreditLoss	1847000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	1000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	30000000	usd
CY2023Q4	us-gaap	Held To Maturity Securities Fair Value HeldToMaturitySecuritiesFairValue	1818000000	usd
CY2024Q2	us-gaap	Debt Securities Held To Maturity Accrued Interest After Allowance For Credit Loss DebtSecuritiesHeldToMaturityAccruedInterestAfterAllowanceForCreditLoss	6000000	usd
CY2024Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	26000000	usd
CY2023Q1	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	28000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	31000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	-1000000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	-1000000	usd
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Writeoff DebtSecuritiesAvailableForSaleAllowanceForCreditLossWriteoff	-2000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	3000000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	1000000	usd
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	-1000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	28000000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Amortized Cost Allowance For Credit Loss Excluding Accrued Interest DebtSecuritiesAvailableForSaleAmortizedCostAllowanceForCreditLossExcludingAccruedInterest	28000000	usd
CY2024Q2	fhlbsf	Availablefor Sale Debt Securitiesand Heldto Maturity Debt Securities Private Label Mortgage Back Securities Amortized Cost Percentage Rated Single A Or Above AvailableforSaleDebtSecuritiesandHeldtoMaturityDebtSecuritiesPrivateLabelMortgageBackSecuritiesAmortizedCostPercentageRatedSingleAOrAbove	0.04
	fhlbsf	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held Assumption For Measurement Prepayment Speed Weighted Average OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeldAssumptionForMeasurementPrepaymentSpeedWeightedAverage	0.100
	fhlbsf	Other Than Temporary Impairment Losses Investments Portion Recognized In Earnings Net Qualitative Disclosures Default Rate OtherThanTemporaryImpairmentLossesInvestmentsPortionRecognizedInEarningsNetQualitativeDisclosuresDefaultRate	0.073
	fhlbsf	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held Assumption For Measurement Loss Severity Weighted Average OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeldAssumptionForMeasurementLossSeverityWeightedAverage	0.511
CY2024Q2	fhlbsf	Other Than Temporary Impairment Credit Losses Recognized In Earnings Credit Losses On Debt Securities Held Assumption For Measurement Credit Enhancements Weighted Average OtherThanTemporaryImpairmentCreditLossesRecognizedInEarningsCreditLossesOnDebtSecuritiesHeldAssumptionForMeasurementCreditEnhancementsWeightedAverage	0.085
CY2024Q2	fhlbsf	Amortized Cost Of Held To Maturity Securities Transferred To Available For Sale Securities AmortizedCostOfHeldToMaturitySecuritiesTransferredToAvailableForSaleSecurities	0	usd
	fhlbsf	Fair Value Of Held To Maturity Securities Transferred To Available For Sale Securities FairValueOfHeldToMaturitySecuritiesTransferredToAvailableForSaleSecurities	2000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	3000000	usd
	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	-1000000	usd
CY2023Q2	us-gaap	Debt Securities Available For Sale Allowance For Credit Loss Not Previously Recorded DebtSecuritiesAvailableForSaleAllowanceForCreditLossNotPreviouslyRecorded	1000000	usd
CY2024Q2	fhlbsf	Otherthan Temporary Impairment Credit Losses Recognizedin Earnings Totalaccretionoramortization OtherthanTemporaryImpairmentCreditLossesRecognizedinEarningsTotalaccretionoramortization	5000000	usd
	fhlbsf	Otherthan Temporary Impairment Credit Losses Recognizedin Earnings Totalaccretionoramortization OtherthanTemporaryImpairmentCreditLossesRecognizedinEarningsTotalaccretionoramortization	3000000	usd
CY2023Q2	fhlbsf	Otherthan Temporary Impairment Credit Losses Recognizedin Earnings Totalaccretionoramortization OtherthanTemporaryImpairmentCreditLossesRecognizedinEarningsTotalaccretionoramortization	8000000	usd
	fhlbsf	Otherthan Temporary Impairment Credit Losses Recognizedin Earnings Totalaccretionoramortization OtherthanTemporaryImpairmentCreditLossesRecognizedinEarningsTotalaccretionoramortization	19000000	usd
CY2024Q2	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	0	usd
CY2024Q2	us-gaap	Weighted Average Interest Rate On Overdrawn Demand Deposit WeightedAverageInterestRateOnOverdrawnDemandDeposit	0.0515
CY2023Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	2000000	usd
CY2023Q4	us-gaap	Weighted Average Interest Rate On Overdrawn Demand Deposit WeightedAverageInterestRateOnOverdrawnDemandDeposit	0.0515
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Next Rolling Twelve Months FederalHomeLoanBankAdvancesMaturitiesSummaryInNextRollingTwelveMonths	34303000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Next Twelve Rolling Months FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInNextTwelveRollingMonths	0.0462
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Next Rolling Twelve Months FederalHomeLoanBankAdvancesMaturitiesSummaryInNextRollingTwelveMonths	35241000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Next Twelve Rolling Months FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInNextTwelveRollingMonths	0.0487
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Two FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearTwo	8044000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Two FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearTwo	0.0406
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Two FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearTwo	12532000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Two FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearTwo	0.0388
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Three FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearThree	5906000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Three FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearThree	0.0359
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Three FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearThree	6437000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Three FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearThree	0.0323
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Four FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearFour	3280000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Four FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearFour	0.0398
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Four FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearFour	2548000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Four FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearFour	0.0362
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Five FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearFive	1623000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Five FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearFive	0.0432
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary In Rolling Year Five FederalHomeLoanBankAdvancesMaturitiesSummaryInRollingYearFive	3660000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing In Rolling Year Five FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingInRollingYearFive	0.0407
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Maturities Summary After Rolling Year Five FederalHomeLoanBankAdvancesMaturitiesSummaryAfterRollingYearFive	2038000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing After Rolling Year Five FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingAfterRollingYearFive	0.0375
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Maturities Summary After Rolling Year Five FederalHomeLoanBankAdvancesMaturitiesSummaryAfterRollingYearFive	1290000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate Maturing After Rolling Year Five FederalHomeLoanBankAdvancesWeightedAverageInterestRateMaturingAfterRollingYearFive	0.0371
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Par Value FederalHomeLoanBankAdvancesParValue	55194000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate FederalHomeLoanBankAdvancesWeightedAverageInterestRate	0.0435
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Par Value FederalHomeLoanBankAdvancesParValue	61710000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Weighted Average Interest Rate FederalHomeLoanBankAdvancesWeightedAverageInterestRate	0.0438
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Valuation Adjustments For Hedging Activities FederalHomeLoanBankAdvancesValuationAdjustmentsForHedgingActivities	-457000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Valuation Adjustments For Hedging Activities FederalHomeLoanBankAdvancesValuationAdjustmentsForHedgingActivities	-371000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Valuation Adjustments Under Fair Value Option FederalHomeLoanBankAdvancesValuationAdjustmentsUnderFairValueOption	-2000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Valuation Adjustments Under Fair Value Option FederalHomeLoanBankAdvancesValuationAdjustmentsUnderFairValueOption	-4000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances FederalHomeLoanBankAdvances	54735000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances FederalHomeLoanBankAdvances	61335000000	usd
CY2024Q2	fhlbsf	Federal Home Loan Bank Advanceswith Fullprepayment Symmetry Outstanding FederalHomeLoanBankAdvanceswithFullprepaymentSymmetryOutstanding	36300000000	usd
CY2023Q4	fhlbsf	Federal Home Loan Bank Advanceswith Fullprepayment Symmetry Outstanding FederalHomeLoanBankAdvanceswithFullprepaymentSymmetryOutstanding	39800000000	usd
CY2024Q2	fhlbsf	Federal Home Loan Bank Advances With Partial Prepayment Symmetry Outstanding FederalHomeLoanBankAdvancesWithPartialPrepaymentSymmetryOutstanding	182000000	usd
CY2023Q4	fhlbsf	Federal Home Loan Bank Advances With Partial Prepayment Symmetry Outstanding FederalHomeLoanBankAdvancesWithPartialPrepaymentSymmetryOutstanding	209000000	usd
CY2024Q2	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	0	usd
CY2023Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	2000000	usd
CY2024Q2	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	0	usd
CY2023Q4	us-gaap	Deposit Liabilities Reclassified As Loans Receivable1 DepositLiabilitiesReclassifiedAsLoansReceivable1	2000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Next Rolling Twelve Months FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInNextRollingTwelveMonths	34623000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Next Rolling Twelve Months FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInNextRollingTwelveMonths	35561000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Next Rolling Twelve Months FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInNextRollingTwelveMonths	37550000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Next Rolling Twelve Months FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInNextRollingTwelveMonths	36115000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Rolling Year Two FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInRollingYearTwo	8044000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Rolling Year Two FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInRollingYearTwo	12542000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Rolling Year Two FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInRollingYearTwo	7432000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Rolling Year Two FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInRollingYearTwo	13000000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Rolling Year Three FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInRollingYearThree	5916000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Rolling Year Three FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInRollingYearThree	6437000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Rolling Year Three FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInRollingYearThree	5156000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Rolling Year Three FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInRollingYearThree	6149000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Rolling Year Four FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInRollingYearFour	3280000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Rolling Year Four FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInRollingYearFour	2558000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Rolling Year Four FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInRollingYearFour	2983000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Rolling Year Four FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInRollingYearFour	2551000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Rolling Year Five FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInRollingYearFive	1613000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date In Rolling Year Five FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateInRollingYearFive	3660000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Rolling Year Five FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInRollingYearFive	1193000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date In Rolling Year Five FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateInRollingYearFive	2917000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date After Rolling Year Five FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateAfterRollingYearFive	1718000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Call Date After Rolling Year Five FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextCallDateAfterRollingYearFive	950000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date After Rolling Year Five FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateAfterRollingYearFive	880000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Earlier Of Contractual Maturity Or Next Put Or Convert Date After Rolling Year Five FederalHomeLoanBankAdvancesEarlierOfContractualMaturityOrNextPutOrConvertDateAfterRollingYearFive	976000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Par Value FederalHomeLoanBankAdvancesParValue	55194000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Par Value FederalHomeLoanBankAdvancesParValue	61710000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Par Value FederalHomeLoanBankAdvancesParValue	55194000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Par Value FederalHomeLoanBankAdvancesParValue	61710000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Fixed Rate Under One Year FederalHomeLoanBankAdvancesFixedRateUnderOneYear	23276000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Fixed Rate Under One Year FederalHomeLoanBankAdvancesFixedRateUnderOneYear	23866000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Fixed Rate After One Year FederalHomeLoanBankAdvancesFixedRateAfterOneYear	19886000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Fixed Rate After One Year FederalHomeLoanBankAdvancesFixedRateAfterOneYear	26467000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Fixed Rate FederalHomeLoanBankAdvancesFixedRate	43162000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Fixed Rate FederalHomeLoanBankAdvancesFixedRate	50333000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Floating Rate Under One Year FederalHomeLoanBankAdvancesFloatingRateUnderOneYear	11027000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Floating Rate Under One Year FederalHomeLoanBankAdvancesFloatingRateUnderOneYear	11377000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Floating Rate After One Year FederalHomeLoanBankAdvancesFloatingRateAfterOneYear	1005000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Floating Rate After One Year FederalHomeLoanBankAdvancesFloatingRateAfterOneYear	0	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Floating Rate FederalHomeLoanBankAdvancesFloatingRate	12032000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Floating Rate FederalHomeLoanBankAdvancesFloatingRate	11377000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Par Value FederalHomeLoanBankAdvancesParValue	55194000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Par Value FederalHomeLoanBankAdvancesParValue	61710000000	usd
CY2024Q2	fhlbsf	Housingpriceforecastappreciationoveroneyear Housingpriceforecastappreciationoveroneyear	0.015
CY2024Q2	fhlbsf	Housing Price Forecast Appreciation Over Five Years Plus Horizon HousingPriceForecastAppreciationOverFiveYearsPlusHorizon	0.040
CY2023Q4	fhlbsf	Housingpriceforecastappreciationoveroneyear Housingpriceforecastappreciationoveroneyear	0.013
CY2023Q4	fhlbsf	Housing Price Forecast Appreciation Over Five Years Plus Horizon HousingPriceForecastAppreciationOverFiveYearsPlusHorizon	0.040
CY2024Q2	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	7000000	usd
CY2023Q4	us-gaap	Noninterest Bearing Deposit Liabilities Domestic NoninterestBearingDepositLiabilitiesDomestic	5000000	usd
CY2024Q2	us-gaap	Deposits Domestic DepositsDomestic	754000000	usd
CY2023Q4	us-gaap	Deposits Domestic DepositsDomestic	962000000	usd
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Next Twelve Rolling Months FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInNextTwelveRollingMonths	0.0478
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Next Twelve Rolling Months FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInNextTwelveRollingMonths	0.0484
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Rolling Year Two FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInRollingYearTwo	0.0364
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Rolling Year Two FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInRollingYearTwo	0.0470
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Rolling Year Three FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInRollingYearThree	0.0203
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Rolling Year Three FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInRollingYearThree	0.0134
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Rolling Year Four FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInRollingYearFour	0.0336
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Rolling Year Four FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInRollingYearFour	0.0175
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Rolling Year Five FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInRollingYearFive	0.0426
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing In Rolling Year Five FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingInRollingYearFive	0.0298
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing After Rolling Year Five FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingAfterRollingYearFive	0.0267
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Weighted Average Interest Rate Maturing After Rolling Year Five FederalHomeLoanBankConsolidatedObligationsBondsWeightedAverageInterestRateMaturingAfterRollingYearFive	0.0235
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Par FederalHomeLoanBankConsolidatedObligationsBondsPar	55544000000	usd
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Par FederalHomeLoanBankConsolidatedObligationsBondsPar	64977000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Consolidated Obligations Bonds FederalHomeLoanBankConsolidatedObligationsBonds	54925000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Consolidated Obligations Bonds FederalHomeLoanBankConsolidatedObligationsBonds	64297000000	usd
	us-gaap	Derivatives Embedded Derivatives DerivativesEmbeddedDerivatives	When a callable bond for which the Bank is the primary obligor is issued, the Bank may simultaneously enter into an interest rate swap (wherein the Bank pays a variable rate and receives a fixed rate) with a call feature that mirrors the call option embedded in the bond (a sold callable option in a swap).
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Par FederalHomeLoanBankConsolidatedObligationsBondsPar	55544000000	usd
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Bonds Par FederalHomeLoanBankConsolidatedObligationsBondsPar	64977000000	usd
CY2024Q2	fhlbsf	Federal Home Loan Bank Consolidated Obligations Discount Notes Par FederalHomeLoanBankConsolidatedObligationsDiscountNotesPar	22481000000	usd
CY2024Q2	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0522
CY2023Q4	fhlbsf	Federal Home Loan Bank Consolidated Obligations Discount Notes Par FederalHomeLoanBankConsolidatedObligationsDiscountNotesPar	19321000000	usd
CY2023Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.0523
CY2024Q2	us-gaap	Federal Home Loan Bank Consolidated Obligations Discount Notes FederalHomeLoanBankConsolidatedObligationsDiscountNotes	22316000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Consolidated Obligations Discount Notes FederalHomeLoanBankConsolidatedObligationsDiscountNotes	19187000000	usd
CY2024Q2	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	55544000000	usd
CY2023Q4	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	64977000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Risk Based Capital Required FederalHomeLoanBankRiskBasedCapitalRequired	1120000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Risk Based Capital Actual FederalHomeLoanBankRiskBasedCapitalActual	7410000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Risk Based Capital Required FederalHomeLoanBankRiskBasedCapitalRequired	1210000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Risk Based Capital Actual FederalHomeLoanBankRiskBasedCapitalActual	7446000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Regulatory Capital Required FederalHomeLoanBankRegulatoryCapitalRequired	3453000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Regulatory Capital Actual FederalHomeLoanBankRegulatoryCapitalActual	7410000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Regulatory Capital Required FederalHomeLoanBankRegulatoryCapitalRequired	3713000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Regulatory Capital Actual FederalHomeLoanBankRegulatoryCapitalActual	7446000000	usd
CY2024Q2	fhlbsf	Regulatory Capital Ratio Required RegulatoryCapitalRatioRequired	0.0400
CY2024Q2	us-gaap	Federal Home Loan Bank Regulatory Capital Ratio Actual FederalHomeLoanBankRegulatoryCapitalRatioActual	0.0858
CY2023Q4	fhlbsf	Regulatory Capital Ratio Required RegulatoryCapitalRatioRequired	0.0400
CY2023Q4	us-gaap	Federal Home Loan Bank Regulatory Capital Ratio Actual FederalHomeLoanBankRegulatoryCapitalRatioActual	0.0802
CY2024Q2	us-gaap	Federal Home Loan Bank Leverage Capital Required FederalHomeLoanBankLeverageCapitalRequired	4317000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Leverage Capital Actual FederalHomeLoanBankLeverageCapitalActual	11115000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Leverage Capital Required FederalHomeLoanBankLeverageCapitalRequired	4641000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Leverage Capital Actual FederalHomeLoanBankLeverageCapitalActual	11169000000	usd
CY2024Q2	fhlbsf	Leverage Ratio Required LeverageRatioRequired	0.0500
CY2024Q2	us-gaap	Federal Home Loan Bank Leverage Ratio Actual1 FederalHomeLoanBankLeverageRatioActual1	0.1288
CY2023Q4	fhlbsf	Leverage Ratio Required LeverageRatioRequired	0.0500
CY2023Q4	us-gaap	Federal Home Loan Bank Leverage Ratio Actual1 FederalHomeLoanBankLeverageRatioActual1	0.1203
CY2024Q2	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	565000000	usd
CY2024Q2	us-gaap	Financial Instruments Subject To Mandatory Redemption Number Of Stockholders1 FinancialInstrumentsSubjectToMandatoryRedemptionNumberOfStockholders1	7	institutions
CY2023Q4	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	706000000	usd
CY2023Q4	us-gaap	Financial Instruments Subject To Mandatory Redemption Number Of Stockholders1 FinancialInstrumentsSubjectToMandatoryRedemptionNumberOfStockholders1	6	institutions
CY2024Q1	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	666000000	usd
CY2023Q1	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	95000000	usd
CY2023Q4	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	706000000	usd
CY2022Q4	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	5000000	usd
CY2024Q2	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	0	usd
CY2023Q2	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	1056000000	usd
	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	36000000	usd
	us-gaap	Net Shares Reclassified To Mandatorily Redeemable Capital Stock Value NetSharesReclassifiedToMandatorilyRedeemableCapitalStockValue	1251000000	usd
CY2024Q2	us-gaap	Repayments Of Mandatory Redeemable Capital Securities RepaymentsOfMandatoryRedeemableCapitalSecurities	101000000	usd
CY2023Q2	us-gaap	Repayments Of Mandatory Redeemable Capital Securities RepaymentsOfMandatoryRedeemableCapitalSecurities	308000000	usd
	us-gaap	Repayments Of Mandatory Redeemable Capital Securities RepaymentsOfMandatoryRedeemableCapitalSecurities	177000000	usd
	us-gaap	Repayments Of Mandatory Redeemable Capital Securities RepaymentsOfMandatoryRedeemableCapitalSecurities	413000000	usd
CY2023Q2	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	843000000	usd
CY2024Q2	us-gaap	Shares Subject To Mandatory Redemption Settlement Terms Amount SharesSubjectToMandatoryRedemptionSettlementTermsAmount	565000000	usd
CY2024Q2	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Two FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearTwo	1000000	usd
CY2023Q4	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Two FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearTwo	0	usd
CY2024Q2	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Three FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearThree	3000000	usd
CY2023Q4	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Three FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearThree	1000000	usd
CY2024Q2	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Four FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearFour	536000000	usd
CY2023Q4	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Four FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearFour	2000000	usd
CY2023Q4	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Four FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearFour	2000000	usd
CY2024Q2	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Five FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearFive	24000000	usd
CY2023Q4	us-gaap	Financial Instruments Subject To Mandatory Redemption Redeemable In Year Five FinancialInstrumentsSubjectToMandatoryRedemptionRedeemableInYearFive	702000000	usd
CY2024Q2	us-gaap	Financial Instruments Subject To Mandatory Redemption Past Contractual Redemption Date Due To Outstanding Activity FinancialInstrumentsSubjectToMandatoryRedemptionPastContractualRedemptionDateDueToOutstandingActivity	1000000	usd
CY2023Q4	us-gaap	Financial Instruments Subject To Mandatory Redemption Past Contractual Redemption Date Due To Outstanding Activity FinancialInstrumentsSubjectToMandatoryRedemptionPastContractualRedemptionDateDueToOutstandingActivity	1000000	usd
CY2023Q3	fhlbsf	Retained Earnings Setbythe Boardinc Jcea RetainedEarningsSetbytheBoardincJCEA	2600000000	usd
CY2024Q1	fhlbsf	Retained Earnings Setbythe Boardinc Jcea RetainedEarningsSetbytheBoardincJCEA	1600000000	usd
CY2024Q2	fhlbsf	Jce Agreement Minimum150 Rre JCEAgreementMinimum150RRE	1.50
CY2024Q2	us-gaap	Excess Capital ExcessCapital	98000000	usd
CY2024Q2	fhlbsf	Excess Capital To Assets ExcessCapitalToAssets	0.0011
CY2023Q4	us-gaap	Excess Capital ExcessCapital	118000000	usd
CY2023Q4	fhlbsf	Excess Capital To Assets ExcessCapitalToAssets	0.0013
CY2024Q2	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	100
	us-gaap	Derivatives Methods Of Accounting Hedging Derivatives DerivativesMethodsOfAccountingHedgingDerivatives	<div style="margin-bottom:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:700;line-height:120%">General</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:700;line-height:120%">.</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> The Bank may enter into interest rate swaps (including callable, putable, and basis swaps) and cap and floor agreements (collectively, interest rate exchange agreements or derivatives). The Bank transacts most of its derivatives with large banks and major broker-dealers.</span></div><div style="margin-bottom:12pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">When the Bank issues consolidated obligation discount notes, it may also simultaneously enter into an interest rate exchange agreement to convert the fixed rate discount note to an adjustable rate discount note. The Bank began treating certain of these hedging relationships as fair value hedges in the first quarter of 2024.</span></div>
CY2024Q2	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	104170000000	usd
CY2024Q2	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	817000000	usd
CY2024Q2	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	692000000	usd
CY2023Q4	us-gaap	Derivative Notional Amount DerivativeNotionalAmount	117437000000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value Gross Asset Including Not Subject To Master Netting Arrangement DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement	831000000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Liability Including Not Subject To Master Netting Arrangement DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement	792000000	usd
CY2024Q2	us-gaap	Derivative Asset Fair Value Gross Liability And Obligation To Return Cash Offset DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset	-759000000	usd
CY2024Q2	us-gaap	Derivative Liability Fair Value Gross Asset And Right To Reclaim Cash Offset DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset	687000000	usd
CY2023Q4	us-gaap	Derivative Asset Fair Value Gross Liability And Obligation To Return Cash Offset DerivativeAssetFairValueGrossLiabilityAndObligationToReturnCashOffset	-815000000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Asset And Right To Reclaim Cash Offset DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset	790000000	usd
CY2024Q2	us-gaap	Derivative Assets DerivativeAssets	58000000	usd
CY2024Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	5000000	usd
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	16000000	usd
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	2000000	usd
CY2024Q2	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	354000000	usd
CY2023Q4	us-gaap	Derivative Liability Collateral Right To Reclaim Cash Offset DerivativeLiabilityCollateralRightToReclaimCashOffset	353000000	usd
CY2024Q2	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	426000000	usd
CY2023Q4	us-gaap	Derivative Asset Collateral Obligation To Return Cash Offset DerivativeAssetCollateralObligationToReturnCashOffset	378000000	usd
CY2024Q2	us-gaap	Interest Income Federal Home Loan Bank Advances InterestIncomeFederalHomeLoanBankAdvances	731000000	usd
CY2024Q2	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	292000000	usd
CY2024Q2	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	786000000	usd
CY2024Q2	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	218000000	usd
CY2023Q2	us-gaap	Interest Income Federal Home Loan Bank Advances InterestIncomeFederalHomeLoanBankAdvances	1154000000	usd
CY2023Q2	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	209000000	usd
CY2023Q2	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	1125000000	usd
	us-gaap	Interest Income Federal Home Loan Bank Advances InterestIncomeFederalHomeLoanBankAdvances	1490000000	usd
	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	575000000	usd
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	1636000000	usd
	us-gaap	Interest Expense Other Short Term Borrowings InterestExpenseOtherShortTermBorrowings	411000000	usd
	us-gaap	Interest Income Federal Home Loan Bank Advances InterestIncomeFederalHomeLoanBankAdvances	2317000000	usd
	us-gaap	Interest Income Debt Securities Available For Sale Operating InterestIncomeDebtSecuritiesAvailableForSaleOperating	399000000	usd
	us-gaap	Interest Expense Other Long Term Debt InterestExpenseOtherLongTermDebt	2045000000	usd
CY2024Q2	fhlbsf	Derivative Instruments Not Designated As Hedging Instruments After Price Alignment Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAfterPriceAlignmentGainLossNet	3000000	usd
CY2023Q2	fhlbsf	Derivative Instruments Not Designated As Hedging Instruments After Price Alignment Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAfterPriceAlignmentGainLossNet	13000000	usd
	fhlbsf	Derivative Instruments Not Designated As Hedging Instruments After Price Alignment Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAfterPriceAlignmentGainLossNet	18000000	usd
	fhlbsf	Derivative Instruments Not Designated As Hedging Instruments After Price Alignment Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAfterPriceAlignmentGainLossNet	-21000000	usd
CY2024Q2	us-gaap	Derivative Net Liability Position Aggregate Fair Value DerivativeNetLiabilityPositionAggregateFairValue	329000000	usd
CY2024Q2	us-gaap	Collateral Already Posted Aggregate Fair Value CollateralAlreadyPostedAggregateFairValue	327000000	usd
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	817000000	usd
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	692000000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	831000000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	792000000	usd
CY2024Q2	fhlbsf	Derivative Asset Fair Value Gross Liabilityand Right To Reclaim Cash Offset DerivativeAssetFairValueGrossLiabilityandRightToReclaimCashOffset	-759000000	usd
CY2024Q2	us-gaap	Derivative Liability Fair Value Gross Asset And Right To Reclaim Cash Offset DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset	687000000	usd
CY2023Q4	fhlbsf	Derivative Asset Fair Value Gross Liabilityand Right To Reclaim Cash Offset DerivativeAssetFairValueGrossLiabilityandRightToReclaimCashOffset	-815000000	usd
CY2023Q4	us-gaap	Derivative Liability Fair Value Gross Asset And Right To Reclaim Cash Offset DerivativeLiabilityFairValueGrossAssetAndRightToReclaimCashOffset	790000000	usd
CY2024Q2	us-gaap	Derivative Assets DerivativeAssets	58000000	usd
CY2024Q2	us-gaap	Derivative Liabilities DerivativeLiabilities	5000000	usd
CY2023Q4	us-gaap	Derivative Assets DerivativeAssets	16000000	usd
CY2023Q4	us-gaap	Derivative Liabilities DerivativeLiabilities	2000000	usd
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	58000000	usd
CY2024Q2	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	5000000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	16000000	usd
CY2023Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountOffsetAgainstCollateral	2000000	usd
CY2024Q2	fhlbsf	Derivatives Additional Net Credit Exposure DerivativesAdditionalNetCreditExposure	563000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	771000000	usd
CY2024Q2	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	3000000	usd
CY2023Q2	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-16000000	usd
	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-11000000	usd
	us-gaap	Fair Value Option Changes In Fair Value Gain Loss1 FairValueOptionChangesInFairValueGainLoss1	-15000000	usd
CY2024Q2	fhlbsf	Fair Value Option Principal Balance Advances FairValueOptionPrincipalBalanceAdvances	3866000000	usd
CY2024Q2	us-gaap	Advances Fair Value Disclosure AdvancesFairValueDisclosure	3864000000	usd
CY2024Q2	us-gaap	Federal Home Loan Bank Advances Valuation Adjustments Under Fair Value Option FederalHomeLoanBankAdvancesValuationAdjustmentsUnderFairValueOption	-2000000	usd
CY2023Q4	fhlbsf	Fair Value Option Principal Balance Advances FairValueOptionPrincipalBalanceAdvances	1902000000	usd
CY2023Q4	us-gaap	Advances Fair Value Disclosure AdvancesFairValueDisclosure	1898000000	usd
CY2023Q4	us-gaap	Federal Home Loan Bank Advances Valuation Adjustments Under Fair Value Option FederalHomeLoanBankAdvancesValuationAdjustmentsUnderFairValueOption	-4000000	usd
CY2023Q4	us-gaap	Obligation With Joint And Several Liability Arrangement Amount Outstanding ObligationWithJointAndSeveralLiabilityArrangementAmountOutstanding	1200000000000	usd
CY2024Q2	us-gaap	Obligation With Joint And Several Liability Arrangement Amount Outstanding ObligationWithJointAndSeveralLiabilityArrangementAmountOutstanding	1200000000000	usd
CY2024Q2	fhlbsf	Assets Pledged As Collateral AssetsPledgedAsCollateral	917000000	usd
CY2024Q2	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	563000000	usd
CY2024Q2	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	354000000	usd
CY2023Q4	fhlbsf	Assets Pledged As Collateral AssetsPledgedAsCollateral	1100000000	usd
CY2023Q4	us-gaap	Debt Securities Available For Sale Restricted DebtSecuritiesAvailableForSaleRestricted	771000000	usd
CY2023Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	353000000	usd
	us-gaap	Payments To Acquire Other Receivables PaymentsToAcquireOtherReceivables	10000000	usd
	us-gaap	Payments To Acquire Other Receivables PaymentsToAcquireOtherReceivables	1300000000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	40000000	usd
	us-gaap	Proceeds From Federal Home Loan Bank Borrowings ProceedsFromFederalHomeLoanBankBorrowings	4800000000	usd
CY2024Q2	ecd	Non Rule10b51 Arr Adopted Flag NonRule10b51ArrAdoptedFlag	false
CY2024Q2	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
CY2024Q2	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false
CY2024Q2	ecd	Rule10b51 Arr Trmntd Flag Rule10b51ArrTrmntdFlag	false

Files In Submission

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Federal Home Loan Bank of San Francisco

2024 Q3 Form 10-Q Financial Statement

#000131694424000161 Filed on August 02, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission