CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) - UNAUDITED - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statement of Comprehensive Income [Abstract]
Net earnings (loss) from Cont Ops	$ (24)	$ 39	$ 105	$ (105)
Net earnings (loss) from Disc Ops	0	(1)	0	(34)
Net earnings (loss)	(24)	38	105	(139)
OCI, net of tax:
Foreign currency translation adjustment	(32)	(19)	(35)	(17)
Ownership share of equity method investees’ OCI	14	(3)	31	(5)
DB plan adjustments	0	1	0	4
Unrealized gain (loss) on hedges	(5)	(2)	(8)	(5)
Total OCI, net of tax	(23)	(23)	(12)	(23)
Comprehensive income (loss)	(47)	15	93	(162)
Less: Comprehensive income (loss) attributable to NCI	(46)	0	(31)	24
Comprehensive income (loss) attributable to Fluor	$ (1)	$ 15	$ 124	$ (186)