3.24.3 html 507 33 1 true 32 0 false 3 false false R1.htm 030000 - Disclosure - Form N-CSR Cover Sheet http://xbrl.sec.gov/oef/role/NcsrCover Form N-CSR Cover Cover 1 false false R2.htm 030001 - Disclosure - Shareholder Report Sheet http://xbrl.sec.gov/oef/role/ShareholderReport Shareholder Report Notes 2 false false R3.htm 040010 - Disclosure - Shareholder Report, Line Graph (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails Shareholder Report, Line Graph (Details) Details 3 false false R4.htm 040015 - Disclosure - Shareholder Report, Average Annual Return (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails Shareholder Report, Average Annual Return (Details) Details 4 false false R5.htm 040020 - Disclosure - Shareholder Report, Holdings (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails Shareholder Report, Holdings (Details) Details 5 false false All Reports Book All Reports 8dcf837e910d12d.htm ck0000044201-20240831.xsd ck0000044201-20240831_def.xml ck0000044201-20240831_lab.xml ck0000044201-20240831_pre.xml chartimages_1207482.jpg chartimages_1207488.jpg chartimages_1207526.jpg chartimages_1207532.jpg chartimages_1207570.jpg chartimages_1207576.jpg chartimages_1207614.jpg chartimages_1207620.jpg chartimages_1207658.jpg chartimages_1207664.jpg chartimages_1207702.jpg chartimages_1207708.jpg chartimages_1207746.jpg chartimages_1207752.jpg chartimages_1207790.jpg chartimages_1207796.jpg chartimages_1207834.jpg chartimages_1207840.jpg chartimages_1207878.jpg chartimages_1207884.jpg chartimages_1207922.jpg chartimages_1207928.jpg chartimages_1207966.jpg chartimages_1207972.jpg chartimages_1208010.jpg chartimages_1208016.jpg chartimages_1208054.jpg chartimages_1208060.jpg chartimages_1208098.jpg chartimages_1208104.jpg chartimages_1208142.jpg chartimages_1208148.jpg chartimages_1208186.jpg chartimages_1208192.jpg chartimages_1208230.jpg chartimages_1208236.jpg chartimages_1208274.jpg chartimages_1208280.jpg chartimages_1208318.jpg chartimages_1208324.jpg chartimages_1208362.jpg chartimages_1208368.jpg images_1687.jpg images_1688.jpg images_1689.jpg images_1690.jpg images_1691.jpg images_1692.jpg images_1693.jpg images_1694.jpg images_1695.jpg images_1696.jpg images_1697.jpg images_1698.jpg images_1699.jpg images_1700.jpg images_1701.jpg images_1702.jpg images_1703.jpg images_1704.jpg images_1705.jpg images_1706.jpg images_1707.jpg imgf1d7d9771.jpg http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/dei/2024 http://xbrl.sec.gov/oef/2024 true false