CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Comprehensive Income [Abstract]
NET EARNINGS (LOSS)	$ (43,308)	$ (12,061)
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:
Foreign currency translation adjustment	41,870	26,358
Ownership share of equity method investees’ other comprehensive income (loss)	(2,322)	4,981
Defined benefit pension and postretirement plan adjustments	2,064	1,176
Unrealized gain (loss) on derivative contracts	3,457	(3,602)
Unrealized gain on available-for-sale securities	0	709
TOTAL OTHER COMPREHENSIVE INCOME, NET OF TAX	45,069	29,622
COMPREHENSIVE INCOME	1,761	17,561
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	15,603	5,869
COMPREHENSIVE INCOME (LOSS) ATTRIBUTABLE TO FLUOR CORPORATION	$ (13,842)	$ 11,692