Annual Total Returns |
12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
|
| American Century Mutual Funds, Inc | BALANCED FUND | BALANCED FUND, INVESTOR CLASS | ||||||||||
| Prospectus [Line Items] | ||||||||||
| Annual Return [Percent] | 9.60% | 11.93% | 16.18% | (17.35%) | 16.03% | 12.61% | 19.63% | (3.92%) | 14.05% | 6.90% |