CONDENSED CONSOLIDATED STATEMENT OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Income Statement [Abstract]
TOTAL REVENUE	$ 4,192,747	$ 4,823,770
TOTAL COST OF REVENUE	4,131,060	4,765,975
OTHER (INCOME) AND EXPENSES
Corporate general and administrative expense	61,051	57,271
Restructuring charges	27,368	0
Interest expense	18,637	17,112
Interest income	(12,976)	(7,533)
Total cost and expenses	4,225,140	4,832,825
EARNINGS (LOSS) BEFORE TAXES	(32,393)	(9,055)
INCOME TAX EXPENSE	10,915	3,006
NET EARNINGS (LOSS)	(43,308)	(12,061)
LESS: NET EARNINGS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	15,118	5,529
NET EARNINGS (LOSS) ATTRIBUTABLE TO FLUOR CORPORATION	$ (58,426)	$ (17,590)
Basic earnings (loss) per share (in dollars per share)	$ (0.42)	$ (0.13)
Diluted earnings (loss) per share (in dollars per share)	$ (0.42)	$ (0.13)
SHARES USED TO CALCULATE EARNINGS PER SHARE
BASIC (in shares)	139,776	140,099
DILUTED (in shares)	139,776	140,099
Dividends (in dollars per share)	$ 0.21	$ 0.21