v2.4.0.6
Supplementary Information - Condensed Consolidating Financial Information - Inc Stmt (Details) (USD $)
In Millions, unless otherwise specified
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Revenues and Other Income    
Sales and other operating revenues $ 14,166 $ 14,593
Equity in earnings of affiliates 362 490
Gain (loss) on dispositions 58 940
Other income 65 60
Total Revenues and Other Income 14,651 16,083
Costs and Expenses    
Purchased commodities 5,834 6,078
Production and operating expenses 1,687 1,559
Selling, general and administrative expenses 165 326
Exploration expenses 277 675
Depreciation, depletion and amortization 1,807 1,571
Impairments 2 214
Taxes other than income taxes 892 1,095
Accretion on discounted liabilities 106 105
Interest and debt expense 130 190
Foreign currency transaction (gains) losses (36) 5
Total Costs and Expenses 10,864 11,818
Income from continuing operations before income taxes 3,787 4,265
Provision for income taxes 1,763 2,086
Income (Loss) From Continuing Operations 2,024 2,179
Income (loss) from discontinued operations 129 [1] 776 [1]
Net income (loss) 2,153 2,955
Less: net income attributable to noncontrolling interests (14) (18)
Net Income (Loss) Attributable to ConocoPhillips 2,139 2,937
Comprehensive Income Attributable to ConocoPhillips 1,530 3,823
ConocoPhillips [Member]
    
Revenues and Other Income    
Equity in earnings of affiliates 2,391 2,514
Other income 1 1
Intercompany revenues 20 1
Total Revenues and Other Income 2,412 2,516
Costs and Expenses    
Selling, general and administrative expenses 4 5
Interest and debt expense 586 540
Foreign currency transaction (gains) losses 17  
Total Costs and Expenses 607 545
Income from continuing operations before income taxes 1,805 1,971
Provision for income taxes (205) (190)
Income (Loss) From Continuing Operations 2,010 2,161
Income (loss) from discontinued operations 129 776
Net income (loss) 2,139 2,937
Net Income (Loss) Attributable to ConocoPhillips 2,139 2,937
Comprehensive Income Attributable to ConocoPhillips 1,530 3,823
ConocoPhillips Company [Member]
    
Revenues and Other Income    
Sales and other operating revenues 4,464 4,292
Equity in earnings of affiliates 2,874 2,701
Gain (loss) on dispositions (2) 0
Other income 45 31
Intercompany revenues 51 440
Total Revenues and Other Income 7,432 7,464
Costs and Expenses    
Purchased commodities 3,929 3,807
Production and operating expenses 310 267
Selling, general and administrative expenses 122 263
Exploration expenses 143 90
Depreciation, depletion and amortization 208 204
Taxes other than income taxes 77 82
Accretion on discounted liabilities 14 13
Interest and debt expense 83 81
Foreign currency transaction (gains) losses 8 (28)
Total Costs and Expenses 4,894 4,779
Income from continuing operations before income taxes 2,538 2,685
Provision for income taxes 147 171
Income (Loss) From Continuing Operations 2,391 2,514
Income (loss) from discontinued operations 129 776
Net income (loss) 2,520 3,290
Net Income (Loss) Attributable to ConocoPhillips 2,520 3,290
Comprehensive Income Attributable to ConocoPhillips 1,911 4,176
ConocoPhillips Australia Funding Company [Member]
    
Revenues and Other Income    
Intercompany revenues 11 11
Total Revenues and Other Income 11 11
Costs and Expenses    
Interest and debt expense 10 10
Total Costs and Expenses 10 10
Income from continuing operations before income taxes 1 1
Income (Loss) From Continuing Operations 1 1
Net income (loss) 1 1
Net Income (Loss) Attributable to ConocoPhillips 1 1
Comprehensive Income Attributable to ConocoPhillips 1 1
ConocoPhillips Canada Funding Company I [Member]
    
Revenues and Other Income    
Intercompany revenues 22 22
Total Revenues and Other Income 22 22
Costs and Expenses    
Interest and debt expense 19 19
Foreign currency transaction (gains) losses (22) 11
Total Costs and Expenses (3) 30
Income from continuing operations before income taxes 25 (8)
Provision for income taxes (1) 6
Income (Loss) From Continuing Operations 26 (14)
Net income (loss) 26 (14)
Net Income (Loss) Attributable to ConocoPhillips 26 (14)
Comprehensive Income Attributable to ConocoPhillips (4) 19
ConocoPhillips Canada Funding Company II [Member]
    
Revenues and Other Income    
Intercompany revenues 8 8
Total Revenues and Other Income 8 8
Costs and Expenses    
Interest and debt expense 8 8
Foreign currency transaction (gains) losses (14) 16
Total Costs and Expenses (6) 24
Income from continuing operations before income taxes 14 (16)
Provision for income taxes 1 (1)
Income (Loss) From Continuing Operations 13 (15)
Net income (loss) 13 (15)
Net Income (Loss) Attributable to ConocoPhillips 13 (15)
Comprehensive Income Attributable to ConocoPhillips 1 (2)
All Other Subsidiaries [Member]
    
Revenues and Other Income    
Sales and other operating revenues 9,702 10,301
Equity in earnings of affiliates 405 462
Gain (loss) on dispositions 60 940
Other income 19 28
Intercompany revenues 1,653 825
Total Revenues and Other Income 11,839 12,556
Costs and Expenses    
Purchased commodities 3,064 2,975
Production and operating expenses 1,379 1,307
Selling, general and administrative expenses 56 66
Exploration expenses 134 585
Depreciation, depletion and amortization 1,599 1,367
Impairments 2 214
Taxes other than income taxes 815 1,013
Accretion on discounted liabilities 92 92
Interest and debt expense 11 112
Foreign currency transaction (gains) losses (25) 6
Total Costs and Expenses 7,127 7,737
Income from continuing operations before income taxes 4,712 4,819
Provision for income taxes 1,821 2,100
Income (Loss) From Continuing Operations 2,891 2,719
Income (loss) from discontinued operations 129 777
Net income (loss) 3,020 3,496
Less: net income attributable to noncontrolling interests (14) (18)
Net Income (Loss) Attributable to ConocoPhillips 3,006 3,478
Comprehensive Income Attributable to ConocoPhillips 2,392 4,283
Consolidating Adjustments [Member]
    
Revenues and Other Income    
Equity in earnings of affiliates (5,308) (5,187)
Intercompany revenues (1,765) (1,307)
Total Revenues and Other Income (7,073) (6,494)
Costs and Expenses    
Purchased commodities (1,159) (704)
Production and operating expenses (2) (15)
Selling, general and administrative expenses (17) (8)
Interest and debt expense (587) (580)
Total Costs and Expenses (1,765) (1,307)
Income from continuing operations before income taxes (5,308) (5,187)
Income (Loss) From Continuing Operations (5,308) (5,187)
Income (loss) from discontinued operations (258) (1,553)
Net income (loss) (5,566) (6,740)
Net Income (Loss) Attributable to ConocoPhillips (5,566) (6,740)
Comprehensive Income Attributable to ConocoPhillips $ (4,301) $ (8,477)
[1] *Net of provision for income taxes on discontinued operations of: 2013 $(9) ;2012 $434