v3.20.1
Supplementary Information - Condensed Consolidating Financial Information - Income Statement (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Revenues and Other Income    
Sales and other operating revenues $ 6,158 $ 9,150
Equity in earnings (losses) of affiliates 234 188
Gain (loss) on dispositions (42) 17
Other income (loss) (1,539) 702
Intercomapny revenues 0 0
Total Revenues and Other Income 4,811 10,057
Costs and Expenses    
Purchased commodities 2,661 3,675
Production and operating expenses 1,173 1,271
Selling, general and administrative expenses (3) 153
Exploration expenses 188 110
Depreciation, depletion and amortization 1,411 1,546
Impairments 521 1
Taxes other than income taxes 250 275
Accretion on discounted liabilities 67 86
Interest and debt expense 202 233
Foreign currency transaction gains (90) 12
Other expenses (6) 8
Total Costs and Expenses 6,374 7,370
Income (Loss) before income taxes (1,563) 2,687
Income Tax Expense (Benefit) 148 841
Net income (loss) (1,711) 1,846
Less: net income attributable to noncontrolling interests (28) (13)
Net Income (Loss) (1,739) 1,833
Comprehensive Income (Loss) Attributable to ConocoPhillips (2,527) 2,022
ConocoPhillips [Member]    
Revenues and Other Income    
Sales and other operating revenues 0 0
Equity in earnings (losses) of affiliates (1,681) 1,890
Gain (loss) on dispositions 0 0
Other income (loss) (1) 1
Intercomapny revenues 0 0
Total Revenues and Other Income (1,682) 1,891
Costs and Expenses    
Purchased commodities 0 0
Production and operating expenses 0 0
Selling, general and administrative expenses 2 4
Exploration expenses 0 0
Depreciation, depletion and amortization 0 0
Impairments 0 0
Taxes other than income taxes 0 0
Accretion on discounted liabilities 0 0
Interest and debt expense 70 69
Foreign currency transaction gains 0 0
Other expenses 0 0
Total Costs and Expenses 72 73
Income (Loss) before income taxes (1,754) 1,818
Income Tax Expense (Benefit) (15) (15)
Net income (loss) (1,739) 1,833
Less: net income attributable to noncontrolling interests 0 0
Net Income (Loss) (1,739) 1,833
Comprehensive Income (Loss) Attributable to ConocoPhillips (2,527) 2,022
Consolidating Adjustments [Member]    
Revenues and Other Income    
Sales and other operating revenues 0 0
Equity in earnings (losses) of affiliates 1,988 (3,983)
Gain (loss) on dispositions 0 0
Other income (loss) 0 0
Intercomapny revenues (940) (1,200)
Total Revenues and Other Income 1,048 (5,183)
Costs and Expenses    
Purchased commodities (897) (1,126)
Production and operating expenses (1) (1)
Selling, general and administrative expenses (5) (5)
Exploration expenses 0 0
Depreciation, depletion and amortization 0 0
Impairments 0 0
Taxes other than income taxes 0 0
Accretion on discounted liabilities 0 0
Interest and debt expense (37) (68)
Foreign currency transaction gains 0 0
Other expenses 0 0
Total Costs and Expenses (940) (1,200)
Income (Loss) before income taxes 1,988 (3,983)
Income Tax Expense (Benefit) 0 0
Net income (loss) 1,988 (3,983)
Less: net income attributable to noncontrolling interests 0 0
Net Income (Loss) 1,988 (3,983)
Comprehensive Income (Loss) Attributable to ConocoPhillips 4,165 (4,476)
Reportable Legal Entities [Member] | ConocoPhillips Company [Member]    
Revenues and Other Income    
Sales and other operating revenues 2,903 3,981
Equity in earnings (losses) of affiliates 120 1,622
Gain (loss) on dispositions 9 (5)
Other income (loss) (1,646) 508
Intercomapny revenues 30 26
Total Revenues and Other Income 1,416 6,132
Costs and Expenses    
Purchased commodities 2,612 3,497
Production and operating expenses 160 180
Selling, general and administrative expenses (23) 129
Exploration expenses 25 47
Depreciation, depletion and amortization 147 136
Impairments 2 0
Taxes other than income taxes 48 46
Accretion on discounted liabilities 4 4
Interest and debt expense 107 149
Foreign currency transaction gains (1) 6
Other expenses (6) 12
Total Costs and Expenses 3,075 4,206
Income (Loss) before income taxes (1,659) 1,926
Income Tax Expense (Benefit) 22 36
Net income (loss) (1,681) 1,890
Less: net income attributable to noncontrolling interests 0 0
Net Income (Loss) (1,681) 1,890
Comprehensive Income (Loss) Attributable to ConocoPhillips (2,469) 2,079
Reportable Legal Entities [Member] | Burlington Resources LLC [Member]    
Revenues and Other Income    
Sales and other operating revenues 0 0
Equity in earnings (losses) of affiliates (426) 473
Gain (loss) on dispositions 0 0
Other income (loss) 1 0
Intercomapny revenues 3 13
Total Revenues and Other Income (422) 486
Costs and Expenses    
Purchased commodities 0 0
Production and operating expenses 1 1
Selling, general and administrative expenses 0 0
Exploration expenses 0 0
Depreciation, depletion and amortization 0 0
Impairments 0 0
Taxes other than income taxes 0 0
Accretion on discounted liabilities 0 0
Interest and debt expense 33 33
Foreign currency transaction gains 0 0
Other expenses 0 0
Total Costs and Expenses 34 34
Income (Loss) before income taxes (456) 452
Income Tax Expense (Benefit) (6) (5)
Net income (loss) (450) 457
Less: net income attributable to noncontrolling interests 0 0
Net Income (Loss) (450) 457
Comprehensive Income (Loss) Attributable to ConocoPhillips (1,047) 581
Reportable Legal Entities [Member] | All Other Subsidiaries [Member]    
Revenues and Other Income    
Sales and other operating revenues 3,255 5,169
Equity in earnings (losses) of affiliates 233 186
Gain (loss) on dispositions (51) 22
Other income (loss) 107 193
Intercomapny revenues 907 1,161
Total Revenues and Other Income 4,451 6,731
Costs and Expenses    
Purchased commodities 946 1,304
Production and operating expenses 1,013 1,091
Selling, general and administrative expenses 23 25
Exploration expenses 163 63
Depreciation, depletion and amortization 1,264 1,410
Impairments 519 1
Taxes other than income taxes 202 229
Accretion on discounted liabilities 63 82
Interest and debt expense 29 50
Foreign currency transaction gains (89) 6
Other expenses 0 (4)
Total Costs and Expenses 4,133 4,257
Income (Loss) before income taxes 318 2,474
Income Tax Expense (Benefit) 147 825
Net income (loss) 171 1,649
Less: net income attributable to noncontrolling interests (28) (13)
Net Income (Loss) 143 1,636
Comprehensive Income (Loss) Attributable to ConocoPhillips $ (649) $ 1,816