3.24.0.1 html 217 81 1 true 105 0 false 5 false false R1.htm 010001 - Document - Document And Entity Information {Elements} Sheet http://abf/role/DocumentDocumentandEntityInformation Document And Entity Information Risk/Return 1 false false R2.htm 010002 - Document - American Beacon Funds {Elements} Sheet http://abf/role/Dabfyepro_2471 American Beacon Funds Risk/Return 2 false false R3.htm 010005 - Document - American Beacon EAM International Small Cap Fund {Elements} Sheet http://abf/role/Dabeaminternationalsmallcapfundfyepro_2477 American Beacon EAM International Small Cap Fund Risk/Return 3 false false R4.htm 040000 - Disclosure - Risk/Return Detail Data {Elements} Sheet http://xbrl.sec.gov/rr/role/RiskReturnDetailData Risk/Return Detail Data Risk/Return 4 false false All Reports Book All Reports abf-20240301.xsd abf-20240301_def.xml abf-20240301_lab.xml abf-20240301_pre.xml abf-html7245_485bpos.htm pr2471img001.jpg pr2471img002.jpg pr2471img003.jpg pr2471img004.jpg pr2471img005.jpg pr2471img006.jpg pr2471img007.jpg pr2477img001.jpg pr2477img002.jpg pr2477img003.jpg sa2479img001.jpg sa2480img001.jpg http://xbrl.sec.gov/dei/2023 http://xbrl.sec.gov/rr/2023 true false