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Commitments and Contingencies - Bonds and Parent Guarantees (Details) - USD ($) $ in Millions | 1 Months Ended |
--- | --- | ---
Apr. 30, 2019 | Sep. 30, 2021
Performance Bonds |  |
Guarantor Obligations [Line Items] |  |
Total amount of outstanding performance bonds |  | $ 3,800
Estimate | Performance Bonds |  |
Guarantor Obligations [Line Items] |  |
Estimated cost to complete bonded projects |  | $ 1,100
PRONATEL | Project Contract Termination |  |
Guarantor Obligations [Line Items] |  |
Bond proceeds received | $ 112 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=124440162&loc=d3e12069-110248 + Details
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