| VANGUARD INDEX FUNDS-Vanguard Total Stock Market Index Fund | Jun 30, 2025 | 50.1M | 6.3B | 3.2% | 
                
                        | VANGUARD INDEX FUNDS-Vanguard 500 Index Fund | Jun 30, 2025 | 44.2M | 5.6B | 2.8% | 
                
                        | WASHINGTON MUTUAL INVESTORS FUND | Sep 30, 2025 | 42.4M | 5.3B | 2.7% | 
                
                        | AMERICAN FUNDS FUNDAMENTAL INVESTORS | Sep 30, 2025 | 35.4M | 4.5B | 2.3% | 
                
                        | AMERICAN BALANCED FUND | Sep 30, 2025 | 34.6M | 4.4B | 2.2% | 
                
                        | Income Fund of America | Sep 30, 2025 | 24.6M | 3.1B | 1.6% | 
                
                        | Goldman Sachs TRT II-Goldman Sachs GQG Part. Intl Opportunities Fd. | Jul 31, 2025 | 21.6M | 2.7B | 1.4% | 
                
                        | Fidelity Concord Street Trust-Fidelity 500 Index Fund | Aug 31, 2025 | 19.8M | 2.5B | 1.3% | 
                
                        | iShares Trust-iShares Core S&P 500 ETF | Sep 30, 2025 | 19.1M | 2.4B | 1.2% | 
                
                        | SPDR S&P 500 ETF TRUST | Sep 30, 2025 | 18.6M | 2.3B | 1.2% |