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PARTNERSHIP CAPITAL - Additional Information (Details)
 1 Months Ended 6 Months Ended 12 Months Ended
Sep. 28, 2023
USD ($)
shares
Jun. 10, 2022
Nov. 30, 2024
shares
Sep. 30, 2023
USD ($)
shares
Jun. 30, 2024
$ / shares
Dec. 31, 2024
USD ($)
transaction
day
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Jan. 30, 2025
$ / shares
Dec. 31, 2021
shares
Apr. 21, 2021
Mar. 31, 2020
shares
Schedule of Partnership Units [Line Items]                        
Partnership capital, stock split, conversion ratio   1.5                    
Volume weighted average of trading price, number of trading days | day           5            
Basic earnings (loss) per share (in dollars per unit) | $ / shares           $ 0.04 $ 0.14 $ 0.14        
Diluted earnings (loss) per share (in dollars per unit) | $ / shares           $ 0.04 $ 0.14 $ 0.14        
Exchangeable shares issued as a result of special distribution 21,000,000                     69,500,000
Exchange ratio                     1  
Issuance of BIPC exchangeable shares | $ $ 751,000,000                      
Potential ordinary share transactions                        
Schedule of Partnership Units [Line Items]                        
Quarterly distribution (usd per share) | $ / shares                 $ 0.430      
Quarterly distribution rate (as a percent)                 6.00%      
Brookfield Infrastructure Partners                        
Schedule of Partnership Units [Line Items]                        
Classes of partnership units | transaction           3            
Holding LP                        
Schedule of Partnership Units [Line Items]                        
Classes of partnership units | transaction           4            
Partners' capital                        
Schedule of Partnership Units [Line Items]                        
Repurchased (in shares) (2023: less than)             25,000,000 0        
Share repurchase related cost (2023: less than) | $           $ 0 $ 1 $ 0        
Preferred Unitholders Capital                        
Schedule of Partnership Units [Line Items]                        
Number of shares outstanding (in shares)           43,901,312 43,901,312 43,901,312   55,881,062    
Repurchased and cancelled | $           $ 0 $ 0 $ 220,000,000        
Preferred Unitholders Capital | Series 5 Preferred Units                        
Schedule of Partnership Units [Line Items]                        
Repurchased and cancelled | $             243,000,000          
Losses on redemption | $             23,000,000          
Special General Partner                        
Schedule of Partnership Units [Line Items]                        
Partnership distributions | $           $ 295,000,000 $ 266,000,000 $ 240,000,000        
Special General Partner | Partners' capital                        
Schedule of Partnership Units [Line Items]                        
Number of shares outstanding (in shares)           2,400,631 2,400,631 2,400,631   2,400,631    
Weighted average number of shares outstanding (in shares)           2,400,000 2,400,000 2,400,000        
Limited Partners 1 | Partners' capital                        
Schedule of Partnership Units [Line Items]                        
Number of shares outstanding (in shares)           461,855,350 461,343,972 458,380,315   457,901,280    
Repurchased (in shares) (2023: less than)           0 908,674 0        
Dividend reinvestment plan, unit issued (in shares)           300,000 400,000 300,000        
Dividend reinvestment plan, proceeds | $           $ 11,000,000   $ 13,000,000        
Weighted average number of shares outstanding (in shares)           461,600,000 459,400,000 458,100,000        
Units converted to exchangeable shares, value | $           $ 0 $ 100,000,000 $ 0        
BIPC Exchange LP | Partners' capital                        
Schedule of Partnership Units [Line Items]                        
Units converted to Class A shares of BIPC (in shares)       3,000,000                
Units converted to exchangeable shares, value | $       $ 100,000,000                
Non-controlling Interest - Redeemable Partnership Units | Partners' capital                        
Schedule of Partnership Units [Line Items]                        
Number of shares issued (in shares)       3,287,267                
Number of shares outstanding (in shares)           190,299,956 190,299,956 193,587,223   193,587,223    
Weighted average number of shares outstanding (in shares)           190,300,000 192,700,000 193,600,000        
Units converted to exchangeable shares, value | $           $ 0 $ 100,000,000 $ 0        
Non-controlling Interest - Redeemable Partnership Units | Partners' capital | Brookfield Infrastructure Partners                        
Schedule of Partnership Units [Line Items]                        
Number of shares issued (in shares)       3,287,267                
Non-controlling Interest - Redeemable Partnership Units | Partners' capital | Holding LP                        
Schedule of Partnership Units [Line Items]                        
Number of shares issued (in shares)           190,300,000            
Non-controlling Interest - Exchange BIPC LP Units, equity | Partners' capital                        
Schedule of Partnership Units [Line Items]                        
Shares converted (shares)           200,000 200,000          
Non-controlling Interest - Exchange BIPC LP Units, equity | Preferred Unitholders Capital                        
Schedule of Partnership Units [Line Items]                        
Shares converted (shares)           2,000,000 3,000,000          
Non-controlling Interest - Exchange LP Units, equity | Partners' capital                        
Schedule of Partnership Units [Line Items]                        
Partnership distributions (in shares)                       0.11
Number of shares outstanding (in shares)           5,738,152 6,086,026 6,464,819   7,015,032    
Shares converted (shares)           200,000 200,000 400,000        
Exchange LP conversion (in shares)           100,000 200,000 200,000        
Exchange LP unit conversion, value | $           $ 2,000,000 $ 4,000,000 $ 2,000,000        
Non-controlling Interest - Class A Preferred Units                        
Schedule of Partnership Units [Line Items]                        
Number of shares issued (in shares)     23,088,572                  
Repurchase, authorized percentage     5.00%                  
Number of shares outstanding (in shares)     23,088,572                  
Maximum percentage for public float     10.00%                  
Non-controlling interest— BIPC exchangeable shares and class A.2 exchangeable shares | Partners' capital                        
Schedule of Partnership Units [Line Items]                        
Number of shares outstanding (in shares)           132,051,909 131,872,066 110,567,671   110,157,540    
Non-controlling interest— BIPC exchangeable shares and class A.2 exchangeable shares | Partners' capital | BIPC Exchangeable Share                        
Schedule of Partnership Units [Line Items]                        
Number of shares outstanding (in shares)           119,039,120 131,872,066          
Non-controlling interest— BIPC exchangeable shares and class A.2 exchangeable shares | Partners' capital | Class A.2 Exchangeable Shares                        
Schedule of Partnership Units [Line Items]                        
Number of shares outstanding (in shares)           13,012,789 0          
Incentive Distribution, $0.1827 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units)                        
Schedule of Partnership Units [Line Items]                        
Distributions threshold, per quarter, per share (in dollars per share) | $ / shares         $ 0.1218              
Distribution rights entitle as percent, threshold           15.00%            
Incentive Distribution, $0.198 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units)                        
Schedule of Partnership Units [Line Items]                        
Distributions threshold, per quarter, per share (in dollars per share) | $ / shares         $ 0.1320              
Distribution rights entitle as percent, threshold           25.00%            
Incentive Distribution, $0.203 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units)                        
Schedule of Partnership Units [Line Items]                        
Distributions threshold, per quarter, per share (in dollars per share) | $ / shares             $ 0.1827          
Incentive Distribution, $0.22 Threshold | Special General Partner | Holding LP | Holding LP’s units (other than Holding LP Class A Preferred Units)                        
Schedule of Partnership Units [Line Items]                        
Distributions threshold, per quarter, per share (in dollars per share) | $ / shares             $ 0.1980