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Revenue - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Contract assets | $ 716 | $ 606 |
Contract liabilities | 439 | 344 |
Contract with customer, liability, revenue recognized | 308 | 308 |
Unbilled receivables | 471 | 402 |
Retentions held by customers | 245 | 204 |
Remaining performance obligations | 3,725 |  |
Revenues | 34,949 | 32,723 | $ 29,206
Equity method investments |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |
Revenues | $ 221 | $ 237 | $ 199

X
- Definition Amounts due for billed services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the Company and, at a minimum, one other party. An example would be amounts billed to customers under contracts or programs but not paid as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 912 -SubTopic 310 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482312/912-310-45-2 + Details
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