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Segment Disclosures - Capital Expenditures and Interest (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Capital Expenditures and Investments |  |  |
Consolidated capital expenditures and investments | $ 6,636 | $ 6,750 | $ 4,591
Interest Income and Expense |  |  |
Interest income | 166 | 97 | 112
Interest and debt expense | 778 | 735 | 1,098
Corporate, Non-Segment [Member] |  |  |
Capital Expenditures and Investments |  |  |
Consolidated capital expenditures and investments | 61 | 190 | 63
Interest Income and Expense |  |  |
Interest income | 149 | 80 | 101
Interest and debt expense | 778 | 735 | 1,098
Alaska Segment [Member] | Operating Segments [Member] |  |  |
Capital Expenditures and Investments |  |  |
Consolidated capital expenditures and investments | 1,513 | 1,298 | 815
Interest Income and Expense |  |  |
Interest income | 0 | 0 | 0
Lower 48 Segment [Member] | Operating Segments [Member] |  |  |
Capital Expenditures and Investments |  |  |
Consolidated capital expenditures and investments | 3,394 | 3,184 | 2,136
Interest Income and Expense |  |  |
Interest income | 0 | 0 | 0
Canada Segment [Member] | Operating Segments [Member] |  |  |
Capital Expenditures and Investments |  |  |
Consolidated capital expenditures and investments | 368 | 477 | 202
Interest Income and Expense |  |  |
Interest income | 0 | 0 | 0
Europe, Middle East and North Africa Segment [Member] | Operating Segments [Member] |  |  |
Capital Expenditures and Investments |  |  |
Consolidated capital expenditures and investments | 708 | 877 | 872
Interest Income and Expense |  |  |
Interest income | 11 | 12 | 11
Asia Pacific Segment [Member] | Operating Segments [Member] |  |  |
Capital Expenditures and Investments |  |  |
Consolidated capital expenditures and investments | 584 | 718 | 482
Interest Income and Expense |  |  |
Interest income | 6 | 5 | 0
Other International Segment [Member] | Operating Segments [Member] |  |  |
Capital Expenditures and Investments |  |  |
Consolidated capital expenditures and investments | 8 | 6 | 21
Interest Income and Expense |  |  |
Interest income | $ 0 | $ 0 | $ 0

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