CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 25	$ 181	$ 219	$ 119
OCI, net of tax:
Foreign currency translation adjustment	37	(25)	(12)	40
Ownership share of equity method investees' OCI	(6)	0	(11)	(4)
Other	0	(1)	(5)	1
Total OCI, net of tax	31	(26)	(28)	37
Comprehensive income	56	155	191	156
Less: Comprehensive income (loss) attributable to NCI	(28)	(22)	(62)	(39)
Comprehensive income attributable to Fluor	$ 84	$ 177	$ 253	$ 195