3.23.4 html 396 82 1 true 89 0 false 2 false false R1.htm 000000 - Document - Document and Entity Information {Elements} Sheet http://www.ABglobal.com/role/DocumentDocumentandEntityInformationElements000000 Document and Entity Information Risk/Return 1 false false R2.htm 000021 - Disclosure - Risk/Return Detail Data {Elements} - Emerging Markets Portfolio Sanford C. Bernstein Fund, Inc. Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsEmergingMarketsPortfolioSanfordCBernsteinFundInc Risk/Return Detail Data- Emerging Markets Portfolio Sanford C. Bernstein Fund, Inc. Risk/Return 2 false false R3.htm 000041 - Disclosure - Risk/Return Detail Data {Elements} - New York Municipal Portfolio Sanford C. Bernstein Fund, Inc. Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsNewYorkMunicipalPortfolioSanfordCBernsteinFundInc Risk/Return Detail Data- New York Municipal Portfolio Sanford C. Bernstein Fund, Inc. Risk/Return 3 false false R4.htm 000061 - Disclosure - Risk/Return Detail Data {Elements} - California Municipal Portfolio Sanford C. Bernstein Fund, Inc. Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsCaliforniaMunicipalPortfolioSanfordCBernsteinFundInc Risk/Return Detail Data- California Municipal Portfolio Sanford C. Bernstein Fund, Inc. Risk/Return 4 false false R5.htm 000081 - Disclosure - Risk/Return Detail Data {Elements} - Diversified Municipal Portfolio Sanford C. Bernstein Fund, Inc. Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsDiversifiedMunicipalPortfolioSanfordCBernsteinFundInc Risk/Return Detail Data- Diversified Municipal Portfolio Sanford C. Bernstein Fund, Inc. Risk/Return 5 false false R6.htm 000101 - Disclosure - Risk/Return Detail Data {Elements} - Intermediate Duration Portfolio Sanford C. Bernstein Fund, Inc. Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsIntermediateDurationPortfolioSanfordCBernsteinFundInc Risk/Return Detail Data- Intermediate Duration Portfolio Sanford C. Bernstein Fund, Inc. Risk/Return 6 false false R7.htm 000121 - Disclosure - Risk/Return Detail Data {Elements} - Overlay A Portfolio Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsOverlayAPortfolio000121 Risk/Return Detail Data- Overlay A Portfolio Risk/Return 7 false false R8.htm 000141 - Disclosure - Risk/Return Detail Data {Elements} - Tax-Aware Overlay A Portfolio Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsTax-AwareOverlayAPortfolio000141 Risk/Return Detail Data- Tax-Aware Overlay A Portfolio Risk/Return 8 false false R9.htm 000161 - Disclosure - Risk/Return Detail Data {Elements} - Overlay B Portfolio Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsOverlayBPortfolio000161 Risk/Return Detail Data- Overlay B Portfolio Risk/Return 9 false false R10.htm 000181 - Disclosure - Risk/Return Detail Data {Elements} - Tax-Aware Overlay B Portfolio Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsTax-AwareOverlayBPortfolio000181 Risk/Return Detail Data- Tax-Aware Overlay B Portfolio Risk/Return 10 false false R11.htm 000201 - Disclosure - Risk/Return Detail Data {Elements} - Tax-Aware Overlay C Portfolio Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsTax-AwareOverlayCPortfolio000201 Risk/Return Detail Data- Tax-Aware Overlay C Portfolio Risk/Return 11 false false R12.htm 000221 - Disclosure - Risk/Return Detail Data {Elements} - Tax-Aware Overlay N Portfolio Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsTax-AwareOverlayNPortfolio000221 Risk/Return Detail Data- Tax-Aware Overlay N Portfolio Risk/Return 12 false false R13.htm 000301 - Disclosure - Risk/Return Detail Data {Elements} - Emerging Markets Portfolio AB Blended Style Portfolio Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsEmergingMarketsPortfolioABBlendedStylePortfolio Risk/Return Detail Data- Emerging Markets Portfolio AB Blended Style Portfolio Risk/Return 13 false false R14.htm 000321 - Disclosure - Risk/Return Detail Data {Elements} - New York Municipal Portfolio AB Intermediate Municipal Portfolios Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsNewYorkMunicipalPortfolioABIntermediateMunicipalPortfolios Risk/Return Detail Data- New York Municipal Portfolio AB Intermediate Municipal Portfolios Risk/Return 14 false false R15.htm 000341 - Disclosure - Risk/Return Detail Data {Elements} - California Municipal Portfolio AB Intermediate Municipal Portfolios Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsCaliforniaMunicipalPortfolioABIntermediateMunicipalPortfolios Risk/Return Detail Data- California Municipal Portfolio AB Intermediate Municipal Portfolios Risk/Return 15 false false R16.htm 000361 - Disclosure - Risk/Return Detail Data {Elements} - Diversified Municipal Portfolio AB Intermediate Municipal Portfolios Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsDiversifiedMunicipalPortfolioABIntermediateMunicipalPortfolios Risk/Return Detail Data- Diversified Municipal Portfolio AB Intermediate Municipal Portfolios Risk/Return 16 false false R17.htm 000381 - Disclosure - Risk/Return Detail Data {Elements} - Intermediate Duration Portfolio AB Fixed-Income Taxable Portfolios Sheet http://www.ABglobal.com/role/DisclosureRiskReturnDetailDataElementsIntermediateDurationPortfolioABFixedIncomeTaxablePortfolios Risk/Return Detail Data- Intermediate Duration Portfolio AB Fixed-Income Taxable Portfolios Risk/Return 17 false false All Reports Book All Reports bscfi-20240126.xsd bscfi-20240126_cal.xml bscfi-20240126_def.xml bscfi-20240126_lab.xml bscfi-20240126_pre.xml d565146d485bpos.htm g565146g0125145252384.jpg g565146g12c59.jpg g565146g1g03a01.jpg g565146g1g06a51.jpg g565146g1g10a25.jpg g565146g1g12c59.jpg g565146g1g14a52.jpg g565146g1g21q05.jpg g565146g1g22c48.jpg g565146g1g22s58.jpg g565146g1g26g01.jpg g565146g1g30g30.jpg g565146g1g31t33.jpg g565146g1g37g01.jpg g565146g1g43g43.jpg g565146g1g49b49.jpg g565146g1g53g53.jpg g565146g1g57g57.jpg g565146g1g60g60.jpg g565146g22c48.jpg g565146g29v00.jpg g565146g29v01.jpg g565146g29v02.jpg g565146g29v03.jpg g565146g29v05.jpg g565146g29v06.jpg g565146g29v07.jpg g565146g29v08.jpg g565146g67z55.jpg g574698g1g67z55.jpg g574698g31t33.jpg http://xbrl.sec.gov/dei/2023 http://xbrl.sec.gov/rr/2023 true true