Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Earnings Per Share - Calculations of Basic and Diluted EPS and Share Repurchases (Details 2) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Amounts attributable to Fluor Corporation:
Earnings from continuing operations									$ 418,170	$ 715,460	$ 667,711
Loss from discontinued operations, net of taxes									(5,658)	(204,551)
NET EARNINGS ATTRIBUTABLE TO FLUOR CORPORATION	$ (51,400)	$ 171,300	$ 148,500	$ 144,100	$ 214,500	$ 69,500	$ 77,800	$ 149,100	$ 412,512	$ 510,909	$ 667,711
Basic EPS attributable to Flour Corporation:
Weighted average common shares outstanding (in shares)									144,805,000	157,487,000	162,566,000
Earnings from continuing operations (in dollars per share)	$ (0.36)	$ 1.22	$ 1.02	$ 0.98	$ 1.43	$ 1.17	$ 1.03	$ 0.93	$ 2.89	$ 4.54	$ 4.11
Loss from discontinued operations, net of taxes (in dollars per share)		(0.03)			(0.04)	(0.73)	(0.54)		(0.04)	(1.30)
Net earnings (in dollars per share)	(0.36)	1.19	1.02	0.98	1.39	0.44	0.49	0.93	$ 2.85	$ 3.24	$ 4.11
Diluted EPS attributable to Fluor Corporation:
Weighted average common shares outstanding (in shares)									144,805,000	157,487,000	162,566,000
Diluted effect:
Employee stock options, restricted stock units and shares and VDI units (in shares)									1,827,000	1,719,000	1,383,000
Conversion equivalent of dilutive convertible debt (in shares)									90,000	410,000	405,000
Weighted average diluted shares outstanding (in shares)									146,722,000	159,616,000	164,354,000
Earnings from continuing operations (in dollars per share)	(0.36)	1.21	1.00	0.96	1.41	1.15	1.02	0.92	$ 2.85	$ 4.48	$ 4.06
Loss from discontinued operations, net of taxes (in dollars per share)		(0.04)			(0.04)	(0.71)	(0.54)		(0.04)	(1.28)
Net earnings (in dollars per share)	$ (0.36)	$ 1.17	$ 1.00	$ 0.96	$ 1.37	$ 0.44	$ 0.48	$ 0.92	$ 2.81	$ 3.20	$ 4.06
Anti-dilutive securities not included above (in shares)									3,408,000	769,000	1,436,000
Repurchases of common stock
Common stock repurchased and cancelled, shares (in shares)									10,104,988	13,331,402	2,591,557
Common stock repurchased and cancelled, amount (in dollars)									$ 509,658	$ 906,083	$ 200,052