v3.26.1
Shareholder Report
6 Months Ended
Jun. 30, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name American Balanced Fund
Entity Central Index Key 0000004568
Entity Investment Company Type N-1A
Document Period End Date Jun. 30, 2026
American Balanced Fund - Class A [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class A
Trading Symbol ABALX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class A
$
29
0.55
%
*
*Annualized.
Expenses Paid, Amount $ 29
Expense Ratio, Percent 0.55% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class C [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class C
Trading Symbol BALCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share class
Costs of a $10,000 investment
Costs paid as a percentage of a $10,000 investment
Class C
$
68
1.30
%
*
*Annualized.
Expenses Paid, Amount $ 68
Expense Ratio, Percent 1.30% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class F-1 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class F-1
Trading Symbol BALFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class F-1
$
32
0.61
%
*
*Annualized.
Expenses Paid, Amount $ 32
Expense Ratio, Percent 0.61% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class F-2 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class F-2
Trading Symbol AMBFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class F-2
$
19
0.37
%
*
*Annualized.
Expenses Paid, Amount $ 19
Expense Ratio, Percent 0.37% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class F-3 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class F-3
Trading Symbol AFMBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class F-3
$
13
0.25
%
*
*Annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class 529-A [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class 529-A
Trading Symbol CLBAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-A
$
30
0.57
%
*
*Annualized.
Expenses Paid, Amount $ 30
Expense Ratio, Percent 0.57% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class 529-C [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class 529-C
Trading Symbol CLBCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-C
$
70
1.35
%
*
*Annualized.
Expenses Paid, Amount $ 70
Expense Ratio, Percent 1.35% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class 529-E [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class 529-E
Trading Symbol CLBEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-E
$
43
0.82
%
*
*Annualized.
Expenses Paid, Amount $ 43
Expense Ratio, Percent 0.82% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund® - Class 529-F-2 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class 529-F-2
Trading Symbol FBAFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-F-2
$
18
0.34
%
*
*Annualized.
Expenses Paid, Amount $ 18
Expense Ratio, Percent 0.34% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund® - Class 529-F-3 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class 529-F-3
Trading Symbol FBONX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class 529-F-3
$
16
0.30
%
*
*Annualized.
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.30% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class R-1 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class R-1
Trading Symbol RLBAX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-1
$
69
1.32
%
*
*Annualized.
Expenses Paid, Amount $ 69
Expense Ratio, Percent 1.32% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class R-2 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class R-2
Trading Symbol RLBBX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-2
$
69
1.33
%
*
*Annualized.
Expenses Paid, Amount $ 69
Expense Ratio, Percent 1.33% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund® - Class R-2E [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class R-2E
Trading Symbol RAMHX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-2E
$
55
1.05
%
*
*Annualized.
Expenses Paid, Amount $ 55
Expense Ratio, Percent 1.05% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class R-3 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class R-3
Trading Symbol RLBCX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-3
$
46
0.89
%
*
*Annualized.
Expenses Paid, Amount $ 46
Expense Ratio, Percent 0.89% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class R-4 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class R-4
Trading Symbol RLBEX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-4
$
31
0.60
%
*
*Annualized.
Expenses Paid, Amount $ 31
Expense Ratio, Percent 0.60% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class R-5E [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class R-5E
Trading Symbol RLEFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-5E
$
21
0.40
%
*
*Annualized.
Expenses Paid, Amount $ 21
Expense Ratio, Percent 0.40% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund - Class R-5 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class R-5
Trading Symbol RLBFX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-5
$
16
0.30
%
*
*Annualized.
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.30% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
American Balanced Fund® - Class R-6 [Member]  
Shareholder Report [Line Items]  
Fund Name American Balanced Fund®
Class Name Class R-6
Trading Symbol RLBGX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about American Balanced Fund (the "fund") for the period from January 1, 2026 to June 30, 2026.
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. You can also request this information by contacting us at (800) 421-4225.
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?
(based on a hypothetical $10,000 investment)
Share classCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R-6
$
13
0.25
%
*
*Annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25% [1]
Net Assets $ 288,087,000,000
Holdings Count | Holding 4,075
Investment Company, Portfolio Turnover 62.00%
Additional Fund Statistics [Text Block]
Key fund statistics
Fund net assets (in millions)
$
288,087
Total number of portfolio holdings4,075
Portfolio turnover rate including
mortgage dollar roll transactions
62
%
Portfolio turnover rate excluding mortgage dollar roll transactions47
%
Holdings [Text Block]
Portfolio holdings by asset type
 (percent of net assets)
Graphical Representation - Allocation 1 Chart
*Includes derivatives.
[1] Annualized.