XML 20 R4.htm IDEA: XBRL DOCUMENT
v3.25.0.1

CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 USD ($)
Income Statement [Abstract] |
Income tax expense attributable to equity method earnings | $ 376

X
- Definition Income Tax Expense Attributable to Equity Method of Investment + References No definition available. + Details
Name: | flr_IncomeTaxExpenseAttributableToEquityMethodOfInvestment
Namespace Prefix: | flr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeStatementAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration