XML 52 R2.htm IDEA: XBRL DOCUMENT v3.24.2.u1
Shareholder Report
 12 Months Ended
May 31, 2024
USD ($)
Holdings
Shareholder Report [Line Items]  
Document Type N-CSR
Amendment Flag false
Registrant Name Columbia Funds Series Trust I
Entity Central Index Key 0000773757
Entity Investment Company Type N-1A
Document Period End Date May 31, 2024
Columbia Dividend Income Fund (Class A)  
Shareholder Report [Line Items]  
Fund Name Columbia Dividend Income Fund
Class Name Class A
Trading Symbol LBSAX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Dividend Income Fund (the Fund) for the period of June 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class A
$
99		0.90
%
Expenses Paid, Amount $ 99
Expense Ratio, Percent 0.90%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
Top Performance Contributors
Stock selection
| Selections in the financials and consumer staples sectors boosted the Fund’s relative results the most during the annual period.
Allocations
| Underweight positions in the consumer discretionary and real estate sectors buoyed relative Fund results during the annual period.
Individual holdings
| Positions in JP Morgan, a large money center bank; KLA Corporation, a semiconductor equipment company; Broadcom, a semiconductor chip company; and Parker-Hannifin, an electronic equipment company, were among the top contributors to the Fund’s relative performance.
Top Performance Detractors
Stock selection
| Selections in the communication services, health care and consumer discretionary sectors hurt the Fund’s relative results during the annual period.
Allocations
| Underweight positions in the information technology and communications services sectors detracted from relative performance.
Individual holdings
| Fund positions in United Parcel Service, an air freight and logistics company; Cisco Systems, a communications equipment company; Johnson & Johnson, a pharmaceuticals company; and McDonalds, a restaurant company, were top detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Class A (excluding sales charges) 20.2312.0410.52
Class A (including sales charges) 13.3210.719.87
Russell 1000 Index28.0115.4212.40
Russell 1000 Value Index21.7110.748.61
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 39,874,666,035
Holdings Count | Holdings 79
Advisory Fees Paid, Amount $ 198,066,762
Investment Company, Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund
Statistics
Fund net assets
$
39,874,666,035
Total number of portfolio holdings79
Management services fees
(represents 0.53% of Fund average net assets)
$
198,066,762
Portfolio turnover for the reporting period 14%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Columbia Dividend Income Fund (Advisor Class)  
Shareholder Report [Line Items]  
Fund Name Columbia Dividend Income Fund
Class Name Advisor Class
Trading Symbol CVIRX
Annual or Semi-Annual Statement [Text Block] This annual shareholder report contains important information about Columbia Dividend Income Fund (the Fund) for the period of June 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Advisor Class
$
72		0.65
%
Expenses Paid, Amount $ 72
Expense Ratio, Percent 0.65%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
Top Performance Contributors
Stock selection
| Selections in the financials and consumer staples sectors boosted the Fund’s relative results the most during the annual period.
Allocations
| Underweight positions in the consumer discretionary and real estate sectors buoyed relative Fund results during the annual period.
Individual holdings
| Positions in JP Morgan, a large money center bank; KLA Corporation, a semiconductor equipment company; Broadcom, a semiconductor chip company; and Parker-Hannifin, an electronic equipment company, were among the top contributors to the Fund’s relative performance.
Top Performance Detractors
Stock selection
| Selections in the communication services, health care and consumer discretionary sectors hurt the Fund’s relative results during the annual period.
Allocations
| Underweight positions in the information technology and communications services sectors detracted from relative performance.
Individual holdings
| Fund positions in United Parcel Service, an air freight and logistics company; Cisco Systems, a communications equipment company; Johnson & Johnson, a pharmaceuticals company; and McDonalds, a restaurant company, were top detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Advisor Class 20.5012.3210.80
Russell 1000 Index28.0115.4212.40
Russell 1000 Value Index21.7110.748.61
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 39,874,666,035
Holdings Count | Holdings 79
Advisory Fees Paid, Amount $ 198,066,762
Investment Company, Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund
Statistics
Fund net assets
$
39,874,666,035
Total number of portfolio holdings79
Management services fees
(represents 0.53% of Fund average net assets)
$
198,066,762
Portfolio turnover for the reporting period 14%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets.
Derivatives
are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Columbia Dividend Income Fund (Class C)  
Shareholder Report [Line Items]  
Fund Name Columbia Dividend Income Fund
Class Name Class C
Trading Symbol LBSCX
Annual or Semi-Annual Statement [Text Block] This
annual shareholder report
contains important information about Columbia Dividend Income Fund (the Fund) for the period of June 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611
.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class C
$
181
1.65
%
Expenses Paid, Amount $ 181
Expense Ratio, Percent 1.65%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
Top Performance Contributors
Stock selection
| Selections in the financials and consumer staples sectors boosted the Fund’s relative results the most during the annual period.
Allocations
| Underweight positions in the consumer discretionary and real estate sectors buoyed relative Fund results during the annual period.
Individual holdings
| Positions in JP Morgan, a large money center bank; KLA Corporation, a semiconductor equipment company; Broadcom, a semiconductor chip company; and Parker-Hannifin, an electronic equipment company, were among the top contributors to the Fund’s relative performance.
Top Performance Detractors
Stock selection
| Selections in the communication services, health care and consumer discretionary sectors hurt the Fund’s relative results during the annual period.
Allocations
| Underweight positions in the information technology and communications services sectors detracted from relative performance.
Individual holdings
| Fund positions in United Parcel Service, an air freight and logistics company; Cisco Systems, a communications equipment company; Johnson & Johnson, a pharmaceuticals company; and McDonalds, a restaurant company, were top detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Class C (excluding sales charges) 19.3111.209.70
Class C (including sales charges) 18.3111.209.70
Russell 1000 Index28.0115.4212.40
Russell 1000 Value Index21.7110.748.61
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 39,874,666,035
Holdings Count | Holdings 79
Advisory Fees Paid, Amount $ 198,066,762
Investment Company, Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund
Statistics
Fund net assets
$
39,874,666,035
Total number of portfolio holdings
79
Management services fees
(represents 0.53% of Fund average net assets)
$
198,066,762
Portfolio turnover for the reporting period
14
%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund
represented
as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Columbia Dividend Income Fund (Institutional Class)  
Shareholder Report [Line Items]  
Fund Name Columbia Dividend Income Fund
Class Name Institutional Class
Trading Symbol GSFTX
Annual or Semi-Annual Statement [Text Block] This
annual shareholder report
contains important information about Columbia Dividend Income Fund (the Fund) for the period of June 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611
.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Institutional Class
$
72
0.65
%
Expenses Paid, Amount $ 72
Expense Ratio, Percent 0.65%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
Top Performance Contributors
Stock selection
| Selections in the financials and consumer staples sectors boosted the Fund’s relative results the most during the annual period.
Allocations
| Underweight positions in the consumer discretionary and real estate sectors buoyed relative Fund results during the annual period.
Individual holdings
| Positions in JP Morgan, a large money center bank; KLA Corporation, a semiconductor equipment company; Broadcom, a semiconductor chip company; and Parker-Hannifin, an electronic equipment company, were among the top contributors to the Fund’s relative performance.
Top Performance Detractors
Stock selection
| Selections in the communication services, health care and consumer discretionary sectors hurt the Fund’s relative results during the annual period.
Allocations
| Underweight positions in the information technology and communications services sectors detracted from relative performance.
Individual holdings
| Fund positions in United Parcel Service, an air freight and logistics company; Cisco Systems, a communications equipment company; Johnson & Johnson, a pharmaceuticals company; and McDonalds, a restaurant company, were top detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Institutional Class 20.5112.3110.80
Russell 1000 Index28.0115.4212.40
Russell 1000 Value Index21.7110.748.61
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 39,874,666,035
Holdings Count | Holdings 79
Advisory Fees Paid, Amount $ 198,066,762
Investment Company, Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund
Statistics
Fund net assets
$
39,874,666,035
Total number of portfolio holdings
79
Management services fees
(represents 0.53% of Fund average net assets)
$
198,066,762
Portfolio turnover for the reporting period
14
%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron
Corp.		2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron
Corp.		2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Columbia Dividend Income Fund (Institutional 2 Class)  
Shareholder Report [Line Items]  
Fund Name Columbia Dividend Income Fund
Class Name Institutional 2 Class
Trading Symbol CDDRX
Annual or Semi-Annual Statement [Text Block] This
annual shareholder report
contains important information about Columbia Dividend Income Fund (the Fund) for the period of June 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611
.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Institutional 2 Class
$
65
0.59
%
Expenses Paid, Amount $ 65
Expense Ratio, Percent 0.59%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
Top Performance Contributors
Stock selection
| Selections in the financials and consumer staples sectors boosted the Fund’s relative results the most during the annual period.
Allocations
| Underweight positions in the consumer discretionary and real estate sectors buoyed relative Fund results during the annual period.
Individual holdings
| Positions in JP Morgan, a large money center bank; KLA Corporation, a semiconductor equipment company; Broadcom, a semiconductor chip company; and Parker-Hannifin, an electronic equipment company, were among the top contributors to the Fund’s relative performance.
Top Performance Detractors
Stock selection
| Selections in the communication services, health care and consumer discretionary sectors hurt the Fund’s relative results during the annual period.
Allocations
| Underweight positions in the information technology and communications services sectors detracted from relative performance.
Individual holdings
| Fund positions in United Parcel Service, an air freight and logistics company; Cisco Systems, a communications equipment company; Johnson & Johnson, a pharmaceuticals company; and McDonalds, a restaurant company, were top detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Institutional 2 Class 20.5912.3810.90
Russell 1000 Index28.0115.4212.40
Russell 1000 Value Index21.7110.748.61
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 39,874,666,035
Holdings Count | Holdings 79
Advisory Fees Paid, Amount $ 198,066,762
Investment Company, Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund
Statistics
Fund net assets
$
39,874,666,035
Total number of portfolio holdings
79
Management services fees
(represents 0.53% of Fund average net assets)
$
198,066,762
Portfolio turnover for the reporting period
14
%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home
Depot
, Inc. (The)		2.2
%
Merck & Co., Inc.2.2
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home
Depot
, Inc. (The)		2.2
%
Merck & Co., Inc.2.2
%
Columbia Dividend Income Fund (Institutional 3 Class)  
Shareholder Report [Line Items]  
Fund Name Columbia Dividend Income Fund
Class Name Institutional 3 Class
Trading Symbol CDDYX
Annual or Semi-Annual Statement [Text Block] This
annual shareholder report
contains important information about Columbia Dividend Income Fund (the Fund) for the period of June 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611
.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Institutional 3 Class
$
61
0.55
%
Expenses Paid, Amount $ 61
Expense Ratio, Percent 0.55%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
Top Performance Contributors
Stock selection
| Selections in the financials and consumer staples sectors boosted the Fund’s relative results the most during the annual period.
Allocations
| Underweight positions in the consumer discretionary and real estate sectors buoyed relative Fund results during the annual period.
Individual holdings
| Positions in JP Morgan, a large money center bank; KLA Corporation, a semiconductor equipment company; Broadcom, a semiconductor chip company; and Parker-Hannifin, an electronic equipment company, were among the top contributors to the Fund’s relative performance.
Top Performance Detractors
Stock selection
| Selections in the communication services, health care and consumer discretionary sectors hurt the Fund’s relative results during the annual period.
Allocations
| Underweight positions in the information technology and communications services sectors detracted from relative performance.
Individual holdings
| Fund positions in United Parcel Service, an air freight and logistics company; Cisco Systems, a communications equipment company; Johnson & Johnson, a pharmaceuticals company; and McDonalds, a restaurant company, were top detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Institutional 3 Class 20.6412.4410.96
Russell 1000 Index28.0115.4212.40
Russell 1000 Value Index21.7110.748.61
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 39,874,666,035
Holdings Count | Holdings 79
Advisory Fees Paid, Amount $ 198,066,762
Investment Company, Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund
Statistics
Fund net assets
$
39,874,666,035
Total number of portfolio holdings
79
Management services fees
(represents 0.53% of Fund average net assets)
$
198,066,762
Portfolio turnover for the reporting period
14
%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a percentage of Fund net assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Asset
Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Columbia Dividend Income Fund (Class R)  
Shareholder Report [Line Items]  
Fund Name Columbia Dividend Income Fund
Class Name Class R
Trading Symbol CDIRX
Annual or Semi-Annual Statement [Text Block] This
annual shareholder report
contains important information about Columbia Dividend Income Fund (the Fund) for the period of June 1, 2023 to May 31, 2024.
Shareholder Report Annual or Semi-Annual annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at
columbiathreadneedleus.com/resources/literature
. You can also request more information by contacting us at
1-800-345-6611
.
Additional Information Phone Number 1-800-345-6611
Additional Information Website columbiathreadneedleus.com/resources/literature
Expenses [Text Block]
What were the Fund costs for the reporting period?
(Based on a hypothetical $10,000 investment)
ClassCosts of a $10,000 investmentCosts paid as a percentage of a $10,000 investment
Class R
$
126		1.15
%
Expenses Paid, Amount $ 126
Expense Ratio, Percent 1.15%
Factors Affecting Performance [Text Block]
Management's Discussion of Fund Performance
Top Performance Contributors
Stock selection
| Selections in the financials and consumer staples sectors boosted the Fund’s relative results the most during the annual period.
Allocations
| Underweight positions in the consumer discretionary and real estate sectors buoyed relative Fund results during the annual period.
Individual holdings
| Positions in JP Morgan, a large money center bank; KLA Corporation, a semiconductor equipment company; Broadcom, a semiconductor chip company; and Parker-Hannifin, an electronic equipment company, were among the top contributors to the Fund’s relative performance.
Top Performance Detractors
Stock selection
| Selections in the communication services, health care and consumer discretionary sectors hurt the Fund’s relative results during the annual period.
Allocations
| Underweight positions in the information technology and communications services sectors detracted from relative performance.
Individual holdings
| Fund positions in United Parcel Service, an air freight and logistics company; Cisco Systems, a communications equipment company; Johnson & Johnson, a pharmaceuticals company; and McDonalds, a restaurant company, were top detractors during the period.
Performance Past Does Not Indicate Future [Text] Past performance does not guarantee future performance.
Line Graph [Table Text Block]
Fund Performance - Growth of 10K
Average Annual Return [Table Text Block]
Average Annual Total Returns (%)1 year5 years10 years
Class R 19.9211.7510.25
Russell 1000 Index28.0115.4212.40
Russell 1000 Value Index21.7110.748.61
No Deduction of Taxes [Text Block] Performance does not reflect the deduction of taxes that a shareholder may pay on fund distributions or on the redemptions of fund shares.
Updated Performance Information Location [Text Block] Visit
columbiathreadneedleus.com/investment-products/mutual-funds
for more recent performance information.
Net Assets $ 39,874,666,035
Holdings Count | Holdings 79
Advisory Fees Paid, Amount $ 198,066,762
Investment Company, Portfolio Turnover 14.00%
Additional Fund Statistics [Text Block]
Key Fund
Statistics
Fund net assets
$
39,874,666,035
Total number of portfolio holdings
79
Management services fees
(represents 0.53% of Fund average net assets)
$
198,066,762
Portfolio turnover for the reporting period
14
%
Holdings [Text Block]
Graphical Representation of Fund
 
Holdings
The tables below show the investment makeup of the Fund represented as a percentage of Fund
net
assets. Derivatives are excluded from the tables unless otherwise noted. The Fund's portfolio composition is subject to change.
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%
Asset Categories
Graphical Representation - Allocation 1 Chart
Equity Sector Allocation
Graphical Representation - Allocation 2 Chart
Largest Holdings [Text Block]
Top Holdings
JPMorgan Chase & Co.
4.3
%
Microsoft Corp.3.6
%
Exxon Mobil Corp.2.5
%
Broadcom, Inc.2.4
%
Chevron Corp.2.4
%
Johnson & Johnson2.3
%
Walmart, Inc.2.3
%
Procter & Gamble Co. (The)2.3
%
Home Depot, Inc. (The)2.2
%
Merck & Co., Inc.2.2
%