| Form N-CSR Cover | 6 Months Ended |
| Jun. 30, 2024 | |
| Shareholder Report [Line Items] | |
| Document Type | N-CSRS |
| Amendment Flag | false |
| Registrant Name | The Bond Fund of America |
| Entity Central Index Key | 0000013075 |
| Entity Investment Company Type | N-1A |
| Document Period End Date | Jun. 30, 2024 |
| Shareholder Report | 6 Months Ended | |
| Jun. 30, 2024 USD ($) Holdings | ||
| Shareholder Report [Line Items] | ||
| Document Type | N-CSRS | |
| Amendment Flag | false | |
| Registrant Name | The Bond Fund of America | |
| Entity Central Index Key | 0000013075 | |
| Entity Investment Company Type | N-1A | |
| Document Period End Date | Jun. 30, 2024 | |
| The Bond Fund of America® Class R-6 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class R-6 | |
| Trading Symbol | RBFGX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R6 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-R6 | |
| Expenses [Text Block] | What were the fund costs for the last six months? 10,000 Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-6 $11 0.23%* *Annualized | |
| Expenses Paid, Amount | $ 11 | |
| Expense Ratio, Percent | 0.23% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38 % | |
| Holdings [Text Block] | Portfolio *Includes derivatives. | |
| The Bond Fund of America® Class R-5 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class R-5 | |
| Trading Symbol | RBFFX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R5 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-R5 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-5 $14 0.28%* *Annualized | |
| Expenses Paid, Amount | $ 14 | |
| Expense Ratio, Percent | 0.28% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type percent of *Includes derivatives. | |
| The Bond Fund of America® Class R-5E [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class R-5E | |
| Trading Symbol | RBFHX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R5E | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-R5E | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-5E $19 0.38%* *Annualized | |
| Expenses Paid, Amount | $ 19 | |
| Expense Ratio, Percent | 0.38% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38 | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class R-4 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class R-4 | |
| Trading Symbol | RBFEX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R4 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-R4 | |
| Expenses [Text Block] | What were the fund costs for the last six months? 10,000 Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-4 $29 0.58%* *Annualized | |
| Expenses Paid, Amount | $ 29 | |
| Expense Ratio, Percent | 0.58% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38 | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class R-3 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class R-3 | |
| Trading Symbol | RBFCX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R3 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-R3 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-3 $44 0.88%* *Annualized | |
| Expenses Paid, Amount | $ 44 | |
| Expense Ratio, Percent | 0.88% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38 | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class R-2E | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class R-2E | |
| Trading Symbol | RBEBX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R2E | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-R2E | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-2E $51 1.03%* *Annualized | |
| Expenses Paid, Amount | $ 51 | |
| Expense Ratio, Percent | 1.03% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Fund net assets $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class R-2 | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class R-2 | |
| Trading Symbol | RBFBX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R2 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-R2 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-2 $65 1.32%* *Annualized | |
| Expenses Paid, Amount | $ 65 | |
| Expense Ratio, Percent | 1.32% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38 | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class R-1 | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class R-1 | |
| Trading Symbol | RBFAX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-R1 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-R1 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class R-1 $66 1.33%* *Annualized | |
| Expenses Paid, Amount | $ 66 | |
| Expense Ratio, Percent | 1.33% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including transactions 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38 | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class 529-F-3[Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class 529-F-3 | |
| Trading Symbol | FBOFX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F3 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-529F3 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-F-3 $14 0.28%* *Annualized | |
| Expenses Paid, Amount | $ 14 | |
| Expense Ratio, Percent | 0.28% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class 529-F-2 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class 529-F-2 | |
| Trading Symbol | FFBOX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F2 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-529F2 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-F-2 $17 0.34%* *Annualized | |
| Expenses Paid, Amount | $ 17 | |
| Expense Ratio, Percent | 0.34% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class 529-F-1 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class 529-F-1 | |
| Trading Symbol | CFAFX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529F1 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-529F1 | |
| Expenses [Text Block] | *Annualized | |
| Expenses Paid, Amount | $ 22 | |
| Expense Ratio, Percent | 0.45% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Largest Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class 529-T[Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class 529-T | |
| Trading Symbol | TFBFX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-T $21 0.42%* *Annualized | |
| Expenses Paid, Amount | $ 21 | |
| Expense Ratio, Percent | 0.42% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class 529-E [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class 529-E | |
| Trading Symbol | CFAEX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529E | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-529E | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-E $41 0.83%* *Annualized | |
| Expenses Paid, Amount | $ 41 | |
| Expense Ratio, Percent | 0.83% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38 | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class 529-C [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class 529-C | |
| Trading Symbol | CFACX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529C | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-529C | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-C $68 1.38%* *Annualized | |
| Expenses Paid, Amount | $ 68 | |
| Expense Ratio, Percent | 1.38% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class 529-A [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class 529-A | |
| Trading Symbol | CFAAX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-529A | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-529A | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class 529-A $32 0.64%* *Annualized | |
| Expenses Paid, Amount | $ 32 | |
| Expense Ratio, Percent | 0.64% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class F-3 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class F-3 | |
| Trading Symbol | BFFAX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F3 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-F3 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class F-3 $11 0.23%* *Annualized | |
| Expenses Paid, Amount | $ 11 | |
| Expense Ratio, Percent | 0.23% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class F-2 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class F-2 | |
| Trading Symbol | ABNFX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F2 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-F2 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class F-2 $17 0.34%* *Annualized | |
| Expenses Paid, Amount | $ 17 | |
| Expense Ratio, Percent | 0.34% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class F-1 [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class F-1 | |
| Trading Symbol | BFAFX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-F1 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-F1 | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class F-1 $32 0.65%* *Annualized | |
| Expenses Paid, Amount | $ 32 | |
| Expense Ratio, Percent | 0.65% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class T [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class T | |
| Trading Symbol | TBFFX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class T $16 0.32%* *Annualized | |
| Expenses Paid, Amount | $ 16 | |
| Expense Ratio, Percent | 0.32% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class C [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class C | |
| Trading Symbol | BFACX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-C 4225 | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-C | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class C $66 1.34%* *Annualized | |
| Expenses Paid, Amount | $ 66 | |
| Expense Ratio, Percent | 1.34% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| The Bond Fund of America® Class A [Member] | ||
| Shareholder Report [Line Items] | ||
| Fund Name | The Bond Fund of America® | |
| Class Name | Class A | |
| Trading Symbol | ABNDX | |
| Annual or Semi-Annual Statement [Text Block] | This semi-annual shareholder report contains important information about The Bond Fund of America for the period from January 1, 2024 to June 30, 2024. | |
| Shareholder Report Annual or Semi-Annual | semi-annual shareholder report | |
| Additional Information [Text Block] | You can find additional information about the fund at capitalgroup.com/mutual-fund-literature-A | |
| Additional Information Phone Number | (800) 421-4225 | |
| Additional Information Website | capitalgroup.com/mutual-fund-literature-A | |
| Expenses [Text Block] | What were the fund costs for the last six months? Share class Costs of a $10,000 investment Costs paid as a percentage of a $10,000 investment Class A $30 0.61%* *Annualized | |
| Expenses Paid, Amount | $ 30 | |
| Expense Ratio, Percent | 0.61% | [1] |
| Net Assets | $ 84,512,000,000 | |
| Holdings Count | Holdings | 4,275 | |
| Investment Company, Portfolio Turnover | 215% | |
| Additional Fund Statistics [Text Block] | Key fund statistics Fund net assets (in millions) $84,512 Total number of portfolio holdings 4,275 Portfolio turnover rate including 215% Portfolio turnover rate excluding mortgage dollar roll transactions 38% | |
| Holdings [Text Block] | Portfolio holdings by asset type *Includes derivatives. | |
| [1]Annualized | ||
| Shareholder Report, Holdings (Details) | Jun. 30, 2024 | |
| The Bond Fund of America® Class R-6 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class R-6 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class R-6 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class R-6 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class R-6 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class R-6 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class R-6 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class R-6 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class R-6 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class R-6 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class R-5 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class R-5 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class R-5 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class R-5 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class R-5 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class R-5 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class R-5 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class R-5 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class R-5 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class R-5 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class R-5E [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class R-5E [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class R-5E [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class R-5E [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class R-5E [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class R-5E [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class R-5E [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class R-5E [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class R-5E [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class R-5E [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class R-4 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class R-4 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class R-4 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class R-4 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class R-4 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class R-4 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class R-4 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class R-4 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class R-4 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class R-4 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class R-3 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class R-3 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class R-3 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class R-3 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class R-3 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class R-3 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class R-3 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class R-3 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class R-3 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class R-3 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class R-2E | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class R-2E | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class R-2E | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class R-2E | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class R-2E | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class R-2E | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class R-2E | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class R-2E | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class R-2E | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class R-2E | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class R-2 | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class R-2 | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class R-2 | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class R-2 | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class R-2 | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class R-2 | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class R-2 | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class R-2 | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class R-2 | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class R-2 | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class R-1 | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class R-1 | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class R-1 | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class R-1 | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class R-1 | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class R-1 | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class R-1 | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class R-1 | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class R-1 | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class R-1 | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class 529-F-3[Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class 529-F-3[Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class 529-F-3[Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class 529-F-3[Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class 529-F-3[Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class 529-F-3[Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class 529-F-3[Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class 529-F-3[Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class 529-F-3[Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class 529-F-3[Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class 529-F-2 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class 529-F-2 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class 529-F-2 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class 529-F-2 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class 529-F-2 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class 529-F-2 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class 529-F-2 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class 529-F-2 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class 529-F-2 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class 529-F-2 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class 529-F-1 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class 529-F-1 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class 529-F-1 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class 529-F-1 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class 529-F-1 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class 529-F-1 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class 529-F-1 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class 529-F-1 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class 529-F-1 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class 529-F-1 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class 529-T[Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class 529-T[Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class 529-T[Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class 529-T[Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class 529-T[Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class 529-T[Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class 529-T[Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class 529-T[Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class 529-T[Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class 529-T[Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class 529-E [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class 529-E [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class 529-E [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class 529-E [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class 529-E [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class 529-E [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class 529-E [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class 529-E [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class 529-E [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class 529-E [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class 529-C [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class 529-C [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class 529-C [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class 529-C [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class 529-C [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class 529-C [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class 529-C [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class 529-C [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class 529-C [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class 529-C [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class 529-A [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class 529-A [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class 529-A [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class 529-A [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class 529-A [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class 529-A [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class 529-A [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class 529-A [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class 529-A [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class 529-A [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class F-3 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class F-3 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class F-3 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class F-3 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class F-3 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class F-3 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class F-3 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class F-3 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class F-3 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class F-3 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class F-2 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class F-2 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class F-2 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class F-2 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class F-2 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class F-2 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class F-2 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class F-2 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class F-2 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class F-2 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class F-1 [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class F-1 [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class F-1 [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class F-1 [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class F-1 [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class F-1 [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class F-1 [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class F-1 [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class F-1 [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class F-1 [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class T [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class T [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class T [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class T [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class T [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class T [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class T [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class T [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class T [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class T [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class C [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class C [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class C [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class C [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class C [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class C [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class C [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class C [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class C [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class C [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| The Bond Fund of America® Class A [Member] | Mortgage-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 39.91% | |
| The Bond Fund of America® Class A [Member] | Corporate bonds notes and loans [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 29.47% | |
| The Bond Fund of America® Class A [Member] | U.S. Treasury bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 19.82% | |
| The Bond Fund of America® Class A [Member] | Asset-backed obligations [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 6.21% | |
| The Bond Fund of America® Class A [Member] | Bonds and notes of governments and government agencies outside the U S [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 1.03% | |
| The Bond Fund of America® Class A [Member] | Municipals [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.54% | |
| The Bond Fund of America® Class A [Member] | Federal agency bonds & notes [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.02% | |
| The Bond Fund of America® Class A [Member] | Common stocks [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.04% | |
| The Bond Fund of America® Class A [Member] | Other securities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 0.01% | |
| The Bond Fund of America® Class A [Member] | Short term securities and other assets less liabilities [Member] | ||
| Holdings [Line Items] | ||
| Percent of Net Asset Value | 2.95% | [1] |
| [1]Includes derivatives. | ||
