v3.26.1
DEBT AND FINANCING COSTS - Additional Information (Details)
£ in Millions
3 Months Ended
Apr. 15, 2026
USD ($)
Apr. 06, 2026
USD ($)
Mar. 15, 2026
USD ($)
Jan. 15, 2025
USD ($)
option
creditAgreement
Jan. 10, 2025
USD ($)
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Mar. 31, 2026
GBP (£)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
GBP (£)
Jan. 15, 2025
GBP (£)
creditAgreement
Debt Instrument [Line Items]                      
Finance lease obligations, current           $ 2,000,000     $ 2,000,000    
Repayments of fixed-rate debt           79,000,000 $ 905,000,000        
Gain on extinguishment of debt           0 142,000,000        
Commercial Paper                      
Debt Instrument [Line Items]                      
Debt instrument, face amount           $ 2,000,000,000.0          
Debt instrument term           397 days          
Open Market Repurchase YTD | Senior Notes                      
Debt Instrument [Line Items]                      
Debt repurchase amount             50,000,000        
Debt repurchased principal amount             55,000,000        
Discount (premium) to par of debt repurchase             7,000,000        
Gain on extinguishment of debt             7,000,000        
APA Corp                      
Debt Instrument [Line Items]                      
Number of syndicated credit agreements | creditAgreement       2             2
Unsecured Debt | APA Corp                      
Debt Instrument [Line Items]                      
Debt repurchase amount         $ 869,000,000            
Unsecured Debt | Apache Corp                      
Debt Instrument [Line Items]                      
Debt repurchased principal amount         1,000,000,000            
Discount (premium) to par of debt repurchase         $ 135,000,000            
7.70% Notes due 2026 | Unsecured Debt                      
Debt Instrument [Line Items]                      
Repayments of fixed-rate debt     $ 79,000,000                
Debt interest rate     7.70%                
2025 USD Agreement | Line of Credit                      
Debt Instrument [Line Items]                      
Number of syndicated credit agreements | creditAgreement       1             1
2025 USD Agreement | Line of Credit | APA Corp                      
Debt Instrument [Line Items]                      
Debt instrument term       5 years              
Credit facility maximum borrowing capacity             $ 2,000,000,000.0        
Increase of committed amount       $ 2,500,000,000              
Debt extension term       1 year              
2025 USD Agreement | Line of Credit | APA Corp | Letter of Credit                      
Debt Instrument [Line Items]                      
Credit facility maximum borrowing capacity       $ 750,000,000              
Line of credit facility, current borrowing capacity       $ 250,000,000              
Line of credit facility, number of extension options | option       2              
USD Agreement | Line of Credit | Letter of Credit                      
Debt Instrument [Line Items]                      
Credit facility outstanding amount           $ 0     0    
Line of credit outstanding, amount                 0    
GBP Agreement | Line of Credit                      
Debt Instrument [Line Items]                      
Debt instrument term       5 years              
GBP Agreement | Line of Credit | Letter of Credit                      
Debt Instrument [Line Items]                      
Line of credit outstanding, amount | £                   £ 1.0  
GBP Agreement | Line of Credit | APA Corp                      
Debt Instrument [Line Items]                      
Credit facility maximum borrowing capacity | £                     £ 1,500.0
Debt extension term       1 year              
GBP Agreement | Line of Credit | APA Corp | Letter of Credit                      
Debt Instrument [Line Items]                      
Line of credit facility, number of extension options | option       2              
Apache credit facility                      
Debt Instrument [Line Items]                      
Line of credit outstanding, amount           10,000,000   £ 567.0 10,000,000 £ 901.0  
Apache credit facility | Line of Credit                      
Debt Instrument [Line Items]                      
Credit facility outstanding amount           0     0    
The CP Notes | Commercial Paper                      
Debt Instrument [Line Items]                      
APA commercial paper, term loan, and revolving credit facilities           $ 0     $ 0    
4.875% Notes due 2027 | Unsecured Debt | Subsequent Event                      
Debt Instrument [Line Items]                      
Debt interest rate   4.875%                  
4.375% Notes due 2028 | Unsecured Debt | Subsequent Event                      
Debt Instrument [Line Items]                      
Debt interest rate   4.375%                  
4.875% Notes due 2027 and 4.375% Notes due 2028 | Unsecured Debt | Subsequent Event                      
Debt Instrument [Line Items]                      
Repayments of fixed-rate debt   $ 425,000,000                  
7.95% Notes due 2026 | Unsecured Debt | Subsequent Event                      
Debt Instrument [Line Items]                      
Repayments of fixed-rate debt $ 132,000,000                    
Debt interest rate 7.95%