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Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors (Narrative) (Details) - USD ($) $ in Millions | 1 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 30, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Increases in Unapproved Change Orders and Claims [Line Items] |  |  |
Commitments, estimated recovery |  | $ 1,900 |
Ichthys LNG Project |  |  |
Increases in Unapproved Change Orders and Claims [Line Items] |  |  |
Letters of credit outstanding, amount |  | 164 |
JKC Joint Venture |  |  |
Increases in Unapproved Change Orders and Claims [Line Items] |  |  |
Additional investments to joint venture |  | (484) |
JKC Joint Venture | Legal Action Against the Consortium for Combined Cycle Power Plant | Settled Litigation |  |  |
Increases in Unapproved Change Orders and Claims [Line Items] |  |  |
Funds received from litigation settlement | $ 52 |  |
Cost Reimbursable |  |  |
Increases in Unapproved Change Orders and Claims [Line Items] |  |  |
Changes in estimates at completion |  | $ 158 | $ 159
Ichthys LNG Project |  |  |
Increases in Unapproved Change Orders and Claims [Line Items] |  |  |
Variable interest entity, ownership percentage |  | 30.00% | 30.00%
JKC Joint Venture |  |  |
Increases in Unapproved Change Orders and Claims [Line Items] |  |  |
Variable interest entity, ownership percentage |  | 30.00% |

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