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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Additional Information (Details) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Feb. 22, 2022
Dec. 27, 2021
Dec. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Mar. 31, 2021
Schedule Of Significant Accounting Policies [Line Items]                  
Asset impairments           $ 0 $ 208,000,000 $ 4,501,000,000  
Equity method investment impairment     $ 160,000,000     0 160,000,000 0  
Inventory and other impairments           0 48,000,000 27,000,000  
Impairments           0 208,000,000 4,501,000,000  
Goodwill impairment           0 0 87,000,000  
Goodwill     0   $ 0 0 0 0  
Impairment for early termination of drilling rig leases         13,000,000        
Inventory write-downs         5,000,000        
Other asset impairments         9,000,000        
PSC, percentage of gross acreage consolidated   98.00%              
PSC, percentage of gross production consolidated   90.00%              
PSC, development lease term   20 years              
PSC, exploration lease term   5 years              
PSC, cost recovery limit   40.00%              
PSC, fixed profit-sharing rate   30.00%              
Receivables from contracts with customers, net of allowance for doubtful accounts     1,300,000,000     1,300,000,000 1,300,000,000    
Cash and cash equivalent [1]     302,000,000     245,000,000 302,000,000    
Restricted cash     0     0 0    
Oil and gas property impaired, fair value         1,900,000,000     1,900,000,000  
Gathering, processing, and transmission facilities [1]     673,000,000     449,000,000 673,000,000    
GPT facilities, accumulated depreciation     386,000,000     367,000,000 386,000,000    
Deconsolidated net assets $ 183,000,000                
Gain on deconsolidation $ 609,000,000                
Other property and equipment     225,000,000     206,000,000 225,000,000    
Restructuring cumulative cost incurred to date         79,000,000     79,000,000  
Transaction, reorganization, and separation           26,000,000 22,000,000 54,000,000  
Reorganization Activities                  
Schedule Of Significant Accounting Policies [Line Items]                  
Transaction, reorganization, and separation           15,000,000 17,000,000    
Consulting costs                  
Schedule Of Significant Accounting Policies [Line Items]                  
Transaction, reorganization, and separation           9,000,000 11,000,000 2,000,000  
Separation costs                  
Schedule Of Significant Accounting Policies [Line Items]                  
Transaction, reorganization, and separation           6,000,000 6,000,000 51,000,000  
Business Combination Costs                  
Schedule Of Significant Accounting Policies [Line Items]                  
Transaction, reorganization, and separation           11,000,000 5,000,000    
Office closure                  
Schedule Of Significant Accounting Policies [Line Items]                  
Transaction, reorganization, and separation               1,000,000  
Egypt                  
Schedule Of Significant Accounting Policies [Line Items]                  
Goodwill impairment       $ 87,000,000          
Egypt                  
Schedule Of Significant Accounting Policies [Line Items]                  
Inventory and other impairments             26,000,000    
North Sea                  
Schedule Of Significant Accounting Policies [Line Items]                  
Inventory and other impairments             22,000,000    
Variable Interest Entity, Primary Beneficiary                  
Schedule Of Significant Accounting Policies [Line Items]                  
Cash and cash equivalent     132,000,000       132,000,000    
Gathering, processing, and transmission facilities     209,000,000       209,000,000    
Oil and gas proved property                  
Schedule Of Significant Accounting Policies [Line Items]                  
Impairments           0 0 4,319,000,000  
Tangible asset Impairment         $ 20,000,000 0 0 $ 4,319,000,000  
Oil and gas proved property | Significant Unobservable Inputs (Level 3) | Measurement Input, Discount Rate                  
Schedule Of Significant Accounting Policies [Line Items]                  
Oil and gas properties, measurement inputs         10.00%     10.00%  
Oil and gas proved property | Egypt                  
Schedule Of Significant Accounting Policies [Line Items]                  
Impairments       354,000,000   0 0 $ 374,000,000  
Oil and gas proved property | North Sea                  
Schedule Of Significant Accounting Policies [Line Items]                  
Impairments       7,000,000   0 0 7,000,000  
Oil and gas proved property | United States                  
Schedule Of Significant Accounting Policies [Line Items]                  
Impairments       3,900,000,000   0 0 3,938,000,000  
Gathering, processing, and transmission facilities                  
Schedule Of Significant Accounting Policies [Line Items]                  
Tangible asset Impairment       $ 68,000,000   $ 0 0 $ 68,000,000  
Oil and gas property impaired, fair value                 $ 46,000,000
Other Property and Equipment | Minimum                  
Schedule Of Significant Accounting Policies [Line Items]                  
Useful lives of gas gathering, transmission and processing facilities           3 years      
Other Property and Equipment | Maximum                  
Schedule Of Significant Accounting Policies [Line Items]                  
Useful lives of gas gathering, transmission and processing facilities           20 years      
ALTM                  
Schedule Of Significant Accounting Policies [Line Items]                  
Cash and cash equivalent     $ 132,000,000       $ 132,000,000    
ALTM | Third-party investors                  
Schedule Of Significant Accounting Policies [Line Items]                  
Ownership percentage by noncontrolling owners           21.00%      
Kinetik                  
Schedule Of Significant Accounting Policies [Line Items]                  
Ownership percentage by noncontrolling owners           10.00%      
Apache Egypt                  
Schedule Of Significant Accounting Policies [Line Items]                  
Ownership percentage by parent   66.67%              
Apache Egypt | Sinopec                  
Schedule Of Significant Accounting Policies [Line Items]                  
Ownership percentage by noncontrolling owners           33.33%      
[1] (1)    The Altus VIE amounts are disclosed as of December 31, 2021. All Altus balances were deconsolidated as of February 22, 2022. Refer to Note 1—Summary of Significant Accounting Policies and Note 2—Acquisitions and Divestitures for further detail.