Fluor (FLR) 10-Q 31 Jul 14 2014 Q2 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	6 Months Ended
	Jun. 30, 2014	Jul. 25, 2014
Document and Entity Information	'	'
Entity Registrant Name	'FLUOR CORP	'
Entity Central Index Key	'0001124198	'
Document Type	'10-Q	'
Document Period End Date	30-Jun-14	'
Amendment Flag	'false	'
Current Fiscal Year End Date	'--12-31	'
Entity Current Reporting Status	'Yes	'
Entity Filer Category	'Large Accelerated Filer	'
Entity Common Stock, Shares Outstanding	'	157,512,676
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENT OF EARNINGS (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
CONDENSED CONSOLIDATED STATEMENT OF EARNINGS	'	'	'	'
TOTAL REVENUE	$5,251,664	$7,190,328	$10,636,300	$14,375,952
TOTAL COST OF REVENUE	4,906,352	6,857,472	9,978,656	13,701,222
OTHER (INCOME) AND EXPENSES	'	'	'	'
Corporate general and administrative expense	56,711	31,918	94,484	64,520
Interest expense	7,445	6,448	14,342	13,403
Interest income	-4,133	-4,216	-7,939	-8,232
Total cost and expenses	4,966,375	6,891,622	10,079,543	13,770,913
EARNINGS FROM CONTINUING OPERATIONS BEFORE TAXES	285,289	298,706	556,757	605,039
INCOME TAX EXPENSE	90,126	91,366	168,284	184,443
EARNINGS FROM CONTINUING OPERATIONS	195,163	207,340	388,473	420,596
LOSS FROM DISCONTINUED OPERATIONS, NET OF TAXES	-85,183	'	-85,183	'
NET EARNINGS	109,980	207,340	303,290	420,596
LESS: NET EARNINGS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	32,190	45,928	76,426	92,726
NET EARNINGS ATTRIBUTABLE TO FLUOR CORPORATION	77,790	161,412	226,864	327,870
AMOUNTS ATTRIBUTABLE TO FLUOR CORPORATION	'	'	'	'
Earnings from continuing operations	162,973	161,412	312,047	327,870
Loss from discontinued operations, net of taxes	-85,183	'	-85,183	'
NET EARNINGS ATTRIBUTABLE TO FLUOR CORPORATION	$77,790	$161,412	$226,864	$327,870
BASIC EARNINGS (LOSS) PER SHARE ATTRIBUTABLE TO FLUOR CORPORATION	'	'	'	'
Earnings from continuing operations (in dollars per share)	$1.03	$0.99	$1.96	$2.02
Loss from discontinued operations, net of taxes (in dollars per share)	($0.54)	'	($0.54)	'
Basic net earnings (in dollars per share)	$0.49	$0.99	$1.42	$2.02
DILUTED EARNINGS (LOSS) PER SHARE ATTRIBUTABLE TO FLUOR CORPORATION	'	'	'	'
Earnings from continuing operations (in dollars per share)	$1.02	$0.98	$1.93	$2
Loss from discontinued operations, net of taxes (in dollars per share)	($0.54)	'	($0.52)	'
Diluted net earnings (in dollars per share)	$0.48	$0.98	$1.41	$2
SHARES USED TO CALCULATE EARNINGS PER SHARE	'	'	'	'
BASIC (in shares)	158,465	162,797	159,339	162,603
DILUTED (in shares)	160,454	164,135	161,407	164,064
DIVIDENDS DECLARED PER SHARE (in dollars per share)	$0.21	$0.16	$0.42	$0.32

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME	'	'	'	'
NET EARNINGS	$109,980	$207,340	$303,290	$420,596
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:	'	'	'	'
Foreign currency translation adjustment	13,438	-41,303	709	-56,747
Ownership share of equity method investees' other comprehensive income	12,343	5,877	10,345	6,091
Defined benefit pension and postretirement plan adjustments	1,509	1,584	3,157	8,825
Unrealized gain (loss) on derivative contracts	934	-1,994	505	-1,842
Unrealized gain (loss) on debt securities	231	-956	213	-1,097
TOTAL OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX	28,455	-36,792	14,929	-44,770
COMPREHENSIVE INCOME	138,435	170,548	318,219	375,826
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	32,555	46,488	72,452	92,779
COMPREHENSIVE INCOME ATTRIBUTABLE TO FLUOR CORPORATION	$105,880	$124,060	$245,767	$283,047

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEET (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
CURRENT ASSETS	'	'
Cash and cash equivalents ($458,846 and $488,426 related to variable interest entities ("VIEs"))	$2,182,809	$2,283,582
Marketable securities, current ($64,123 and $64,084 related to VIEs)	159,702	186,023
Accounts and notes receivable, net ($190,715 and $220,705 related to VIEs)	1,400,452	1,274,024
Contract work in progress ($264,139 and $238,895 related to VIEs)	1,647,520	1,740,821
Deferred taxes	327,709	245,796
Other current assets	286,653	273,437
Total current assets	6,004,845	6,003,683
Marketable securities, noncurrent	333,035	275,402
Property, plant and equipment ("PP&E") ((net of accumulated depreciation of $1,135,634 and $1,106,925) (net PP&E of $72,548 and $87,774 related to VIEs))	984,578	966,953
Investments and goodwill	306,672	312,293
Deferred taxes	113,935	139,773
Deferred compensation trusts	401,564	388,408
Other	254,322	237,338
TOTAL ASSETS	8,398,951	8,323,850
CURRENT LIABILITIES	'	'
Trade accounts payable ($313,088 and $311,892 related to VIEs)	1,645,880	1,641,109
Convertible senior notes and other borrowings	29,217	29,839
Advance billings on contracts ($277,639 and $327,820 related to VIEs)	776,702	743,524
Accrued salaries, wages and benefits ($53,426 and $64,064 related to VIEs)	683,950	753,452
Other accrued liabilities ($27,526 and $25,517 related to VIEs)	435,009	239,236
Total current liabilities	3,570,758	3,407,160
LONG-TERM DEBT DUE AFTER ONE YEAR	496,825	496,604
NONCURRENT LIABILITIES	542,324	539,263
CONTINGENCIES AND COMMITMENTS	'	'
Capital stock	'	'
Preferred - authorized 20,000,000 shares ($0.01 par value); none issued	'	'
Common - authorized 375,000,000 shares ($0.01 par value); issued and outstanding - 157,599,815 and 161,287,818 shares in 2014 and 2013, respectively	1,576	1,613
Additional paid-in capital	'	12,911
Accumulated other comprehensive loss	-279,298	-298,201
Retained earnings	3,924,270	4,040,664
Total shareholders' equity	3,646,548	3,756,987
Noncontrolling interests	142,496	123,836
Total equity	3,789,044	3,880,823
TOTAL LIABILITIES AND EQUITY	$8,398,951	$8,323,850

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
CONDENSED CONSOLIDATED BALANCE SHEET	'	'
Property, plant and equipment, accumulated depreciation	$1,135,634	$1,106,925
Shareholders' equity	'	'
Preferred stock, authorized shares (in shares)	20,000,000	20,000,000
Preferred stock, par value (in dollars per share)	$0.01	$0.01
Preferred stock, issued shares (in shares)	0	0
Common stock, authorized shares (in shares)	375,000,000	375,000,000
Common stock, par value (in dollars per share)	$0.01	$0.01
Common stock, issued shares (in shares)	157,599,815	161,287,818
Common stock, outstanding shares (in shares)	157,599,815	161,287,818
CURRENT ASSETS, VIEs	'	'
Cash and cash equivalents	2,182,809	2,283,582
Marketable securities, current	159,702	186,023
Accounts and notes receivable	1,400,452	1,274,024
Contract work in progress	1,647,520	1,740,821
Property, plant and equipment, net	984,578	966,953
CURRENT LIABILITIES, VIEs	'	'
Trade accounts payable	1,645,880	1,641,109
Advance billings on contracts related	776,702	743,524
Accrued salaries, wages and benefits	683,950	753,452
Other accrued liabilities	435,009	239,236
Consolidated variable interest entities	'	'
CURRENT ASSETS, VIEs	'	'
Cash and cash equivalents	458,846	488,426
Marketable securities, current	64,123	64,084
Accounts and notes receivable	190,715	220,705
Contract work in progress	264,139	238,895
Property, plant and equipment, net	72,548	87,774
CURRENT LIABILITIES, VIEs	'	'
Trade accounts payable	313,088	311,892
Advance billings on contracts related	277,639	327,820
Accrued salaries, wages and benefits	53,426	64,064
Other accrued liabilities	$27,526	$25,517

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES	'	'
Net earnings	$303,290	$420,596
Adjustments to reconcile net earnings to cash provided (utilized) by operating activities:	'	'
Loss From discontinued operations, net of taxes	-85,183	'
Depreciation of fixed assets	94,863	108,781
Amortization of intangibles	446	445
Loss (gain) on sales of equity method investments	2,158	-2,370
Losses from equity method investments, net of distributions	1,027	4,648
Gain on sale of property, plant and equipment	-12,146	-6,797
Restricted stock and stock option amortization	23,761	20,859
Deferred compensation trust	-13,155	-16,271
Deferred compensation obligation	16,446	16,367
Deferred taxes	-22,892	28,934
Excess tax benefit from stock-based plans	-3,857	-3,418
Retirement plan contributions, net of accruals	-3,628	-1,519
Changes in operating assets and liabilities	-38,785	-340,416
Cash outflows from discontinued operations	-3,115	'
Other items	-3,867	5,693
Cash provided by operating activities	425,729	235,532
CASH FLOWS FROM INVESTING ACTIVITIES	'	'
Purchases of marketable securities	-197,656	-324,436
Proceeds from the sales and maturities of marketable securities	164,903	285,543
Capital expenditures	-148,916	-121,792
Proceeds from disposal of property, plant and equipment	47,105	32,476
Proceeds from sales of equity method investments	44,000	3,005
Investments in partnerships and joint ventures	-17,999	-32,828
Consolidation of a variable interest entity	'	24,675
Acquisitions	'	-7,674
Other items	1,959	2,563
Cash utilized by investing activities	-106,604	-138,468
CASH FLOWS FROM FINANCING ACTIVITIES	'	'
Repurchase of common stock	-323,500	'
Dividends paid	-59,681	-26,206
Distributions paid to noncontrolling interests	-44,284	-45,809
Capital contributions by noncontrolling interests	190	1,462
Taxes paid on vested restricted stock	-11,141	-11,252
Stock options exercised	15,378	11,902
Excess tax benefit from stock-based plans	3,857	3,418
Other items	-1,870	-657
Cash utilized by financing activities	-421,124	-93,506
Effect of exchange rate changes on cash	1,226	-53,023
Decrease in cash and cash equivalents	-100,773	-49,465
Cash and cash equivalents at beginning of period	2,283,582	2,154,541
Cash and cash equivalents at end of period	2,182,809	2,105,076
5.625% Municipal Bonds	'	'
CASH FLOWS FROM FINANCING ACTIVITIES	'	'
Repayment of debt	'	-17,795
Convertible debt and notes payable	'	'
CASH FLOWS FROM FINANCING ACTIVITIES	'	'
Repayment of debt	($73)	($8,569)

CONDENSED_CONSOLIDATED_STATEME3

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) (5.625% Municipal Bonds)	Dec. 31, 2012
5.625% Municipal Bonds	'
Debt instruments	'
Debt interest rate (as a percent)	5.63%

Principles_of_Consolidation

Principles of Consolidation	6 Months Ended
	Jun. 30, 2014
Principles of Consolidation	'
Principles of Consolidation	'
	(1)                  Principles of Consolidation
	The Condensed Consolidated Financial Statements do not include footnotes and certain financial information normally presented annually under accounting principles generally accepted in the United States and, therefore, should be read in conjunction with the company’s December 31, 2013 Annual Report on Form 10-K. Accounting measurements at interim dates inherently involve greater reliance on estimates than at year-end. The results of operations for the three and six months ended June 30, 2014 may not necessarily be indicative of results that can be expected for the full year.
	The Condensed Consolidated Financial Statements included herein are unaudited; however, they contain all adjustments of a normal recurring nature which, in the opinion of management, are necessary to present fairly its consolidated financial position as of June 30, 2014 and its consolidated results of operations and cash flows for the interim periods presented. All significant intercompany transactions of consolidated subsidiaries are eliminated. Certain amounts in 2013 have been reclassified to conform to the 2014 presentation. Management has evaluated all material events occurring subsequent to the date of the financial statements up to the date this quarterly report is filed on Form 10-Q.

Recent_Accounting_Pronouncemen

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2014
Recent Accounting Pronouncements	'
Recent Accounting Pronouncements	'
	(2)                  Recent Accounting Pronouncements
	New accounting pronouncements implemented by the company during the six months ended June 30, 2014 or requiring implementation in future periods are discussed below or elsewhere in the notes, where appropriate.
	In June 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-12, “Accounting for Share-Based Payments When the Terms of an Award Provide That a Performance Target Could Be Achieved After the Requisite Service Period.” This ASU requires that a performance target that affects vesting, and that could be achieved after the requisite service period, be treated as a performance condition. ASU 2014-12 is effective for interim and annual reporting periods beginning after December 15, 2015. Management does not expect the adoption of ASU 2014-12 to have a material impact on the company’s financial position, results of operations or cash flows in that it is currently not applicable.
	In June 2014, the FASB issued ASU 2014-11, “Repurchase-to-Maturity Transactions, Repurchase Financings, and Disclosures,” which makes limited amendments to the guidance in Accounting Standards Codification (“ASC”) 860, “Transfers and Servicing,” on accounting for certain repurchase agreements (“repos”). The ASU (1) requires entities to account for repurchase-to-maturity transactions as secured borrowings (rather than as sales with forward repurchase agreements); (2) eliminates accounting guidance on linked repurchase financing transactions; and (3) expands disclosure requirements related to certain transfers of financial assets that are accounted for as sales and certain transfers (specifically, repos, securities lending transactions and repurchase-to-maturity transactions) accounted for as secured borrowings. This ASU is effective for interim and annual reporting periods beginning after December 15, 2014. Management does not expect the adoption of ASU 2014-11 to have a material impact on the company’s financial position, results of operations or cash flows.
	In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers,” which outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. ASU 2014-09 outlines a five-step process for revenue recognition that focuses on transfer of control, as opposed to transfer of risk and rewards, and also requires enhanced disclosures regarding the nature, amount, timing and uncertainty of revenues and cash flows from contracts with customers. Major provisions include determining which goods and services are distinct and require separate accounting, how variable consideration (which may include change orders and claims) is recognized, whether revenue should be recognized at a point in time or over time and ensuring the time value of money is considered in the transaction price. This ASU is effective for interim and annual reporting periods beginning after December 15, 2016 and can be applied either retrospectively to each prior period presented or as a cumulative-effect adjustment as of the date of adoption. Management is currently evaluating the impact of adopting ASU 2014-09 on the company’s financial position, results of operations and cash flows.
	In April 2014, the FASB issued ASU 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity,” which amends the definition of a discontinued operation and requires entities to provide additional disclosures about disposal transactions that do not meet the discontinued operations criteria. This ASU requires discontinued operations treatment for disposals of a component or group of components of an entity that represent a strategic shift that has or will have a major impact on an entity’s operations or financial results. ASU 2014-08 also expands the scope of ASC 205-20, “Discontinued Operations,” to disposals of equity method investments and acquired businesses held for sale. This ASU is effective prospectively for all disposals or classifications as held for sale that occur in interim and annual reporting periods beginning after December 15, 2014. Management does not expect the adoption of ASU 2014-08 to have a material impact on the company’s financial position, results of operations or cash flows.
	In January 2014, the FASB issued ASU 2014-05, “Service Concession Arrangements.” This ASU clarifies that, unless certain circumstances are met, operating entities should not account for certain concession arrangements with public-sector entities as leases and should not recognize the related infrastructure as property, plant and equipment. This ASU is effective for interim and annual reporting periods beginning after December 15, 2014. Management does not expect the adoption of ASU 2014-05 to have a material impact on the company’s financial position, results of operations or cash flows.
	In the first quarter of 2014, the company adopted ASU 2013-11, “Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exists.” This ASU clarifies the financial statement presentation of unrecognized tax benefits in certain circumstances. The adoption of ASU 2013-11 did not have an impact on the company’s financial position, results of operations or cash flows.
	In the first quarter of 2014, the company adopted ASU 2013-07, “Liquidation Basis of Accounting,” which clarifies when an entity should apply the liquidation basis of accounting. In addition, ASU 2013-07 provides principles for the recognition and measurement of assets and liabilities and requirements for financial statements prepared using the liquidation basis of accounting. The adoption of ASU 2013-07 did not have an impact on the company’s financial position, results of operations or cash flows.
	In the first quarter of 2014, the company adopted ASU 2013-05, “Parent’s Accounting for the Cumulative Translation Adjustment upon Derecognition of Certain Subsidiaries or Groups of Assets within a Foreign Entity or of an Investment in a Foreign Entity.” The objective of ASU 2013-05 is to resolve a practice diversity in circumstances where reporting entities release cumulative translation adjustments into net income when a parent either sells a part or all of its investment in a foreign entity, or no longer holds a controlling financial interest in a subsidiary or group of assets that is a nonprofit activity or a business (other than a sale of in substance real estate or conveyance of oil and gas mineral rights) within a foreign entity. The adoption of ASU 2013-05 did not have an impact on the company’s financial position, results of operations or cash flows.
	In the first quarter of 2014, the company adopted ASU 2013-04, “Obligations Resulting from Joint and Several Liability Arrangements for Which the Total Amount of the Obligation Is Fixed at the Reporting Date,” which addresses the recognition, measurement and disclosure of certain obligations including debt arrangements, other contractual obligations and settled litigation and judicial rulings. The adoption of ASU 2013-04 did not have an impact on the company’s financial position, results of operations or cash flows.

Discontinued_Operations

Discontinued Operations	6 Months Ended
	Jun. 30, 2014
Discontinued Operations	'
Discontinued Operations	'
	(3)                  Discontinued Operations
	The company recorded a loss from discontinued operations of $85 million (net of taxes of $47 million) during the three months ended June 30, 2014 in connection with the reassessment of estimated loss contingencies related to the lead business of St. Joe Minerals Corporation (“St. Joe”) and The Doe Run Company (“Doe Run”) in Herculaneum, Missouri, which are discontinued operations. In 1994, the company sold its interests in St. Joe and Doe Run, along with all liabilities associated with the lead business, pursuant to a sale agreement in which the buyer agreed to indemnify the company for those liabilities. See further discussion of this matter in Note 14.

Other_Comprehensive_Income_Los

Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2014
Other Comprehensive Income (Loss)	'
Other Comprehensive Income (Loss)	'
	(4)                  Other Comprehensive Income (Loss)
	The tax effects of the components of other comprehensive income (loss) (“OCI”) for the three months ended June 30, 2014 and 2013 are as follows:
		Three Months Ended									Three Months Ended
		June 30, 2014									June 30, 2013
					Tax									Tax
		Before-Tax			Benefit			Net-of-Tax			Before-Tax			Benefit			Net-of-Tax
	(in thousands)	Amount			(Expense)			Amount			Amount			(Expense)			Amount
	Other comprehensive income (loss):
	Foreign currency translation adjustment	$	21,359		$	(7,921	)	$	13,438		$	(66,421	)	$	25,118		$	(41,303	)
	Ownership share of equity method investees’ other comprehensive income	19,176			(6,833		)	12,343			8,272			(2,395		)	5,877
	Defined benefit pension and postretirement plan adjustments	2,415			(906		)	1,509			2,535			(951		)	1,584
	Unrealized gain (loss) on derivative contracts	1,426			(492		)	934			(3,191		)	1,197			(1,994		)
	Unrealized gain (loss) on debt securities	369			(138		)	231			(1,530		)	574			(956		)
	Total other comprehensive income (loss)	44,745			(16,290		)	28,455			(60,335		)	23,543			(36,792		)
	Less: Other comprehensive income attributable to noncontrolling interests	365			—			365			560			—			560
	Other comprehensive income (loss) attributable to Fluor Corporation	$	44,380		$	(16,290	)	$	28,090		$	(60,895	)	$	23,543		$	(37,352	)
	The tax effects of the components of OCI for the six months ended June 30, 2014 and 2013 are as follows:
		Six Months Ended									Six Months Ended
		June 30, 2014									June 30, 2013
					Tax									Tax
		Before-Tax			Benefit			Net-of-Tax			Before-Tax			Benefit			Net-of-Tax
	(in thousands)	Amount			(Expense)			Amount			Amount			(Expense)			Amount
	Other comprehensive income (loss):
	Foreign currency translation adjustment	$	3,559		$	(2,850	)	$	709		$	(90,827	)	$	34,080		$	(56,747	)
	Ownership share of equity method investees’ other comprehensive income	18,232			(7,887		)	10,345			8,353			(2,262		)	6,091
	Defined benefit pension and postretirement plan adjustments	5,051			(1,894		)	3,157			14,120			(5,295		)	8,825
	Unrealized gain (loss) on derivative contracts	781			(276		)	505			(2,947		)	1,105			(1,842		)
	Unrealized gain (loss) on debt securities	340			(127		)	213			(1,755		)	658			(1,097		)
	Total other comprehensive income (loss)	27,963			(13,034		)	14,929			(73,056		)	28,286			(44,770		)
	Less: Other comprehensive income (loss) attributable to noncontrolling interests	(3,974		)	—			(3,974		)	53			—			53
	Other comprehensive income (loss) attributable to Fluor Corporation	$	31,937		$	(13,034	)	$	18,903		$	(73,109	)	$	28,286		$	(44,823	)
	The changes in accumulated other comprehensive income (“AOCI”) balances by component (after-tax) for the three months ended June 30, 2014 are as follows:
	(in thousands)	Foreign			Ownership Share of			Defined Benefit			Unrealized			Unrealized			Accumulated
		Currency			Equity Method			Pension and			Gain (Loss) on			Gain on			Other
		Translation			Investees’ Other			Postretirement Plans			Derivative			Available-for-			Comprehensive
					Comprehensive						Contracts			Sale Securities			Income (Loss), Net
					Income (Loss)
	Attributable to Fluor Corporation:
	Balance as of March 31, 2014	$	(8,615	)	$	(34,272	)	$	(256,649	)	$	(8,010	)	$	158		$	(307,388	)
	Other comprehensive income (loss) before reclassifications	13,202			12,343			(548		)	817			228			26,042
	Amounts reclassified from AOCI	—			—			2,057			(12		)	3			2,048
	Net other comprehensive income	13,202			12,343			1,509			805			231			28,090
	Balance as of June 30, 2014	$	4,587		$	(21,929	)	$	(255,140	)	$	(7,205	)	$	389		$	(279,298	)
	Attributable to Noncontrolling Interests:
	Balance as of March 31, 2014	$	3,607		$	—		$	—		$	6		$	—		$	3,613
	Other comprehensive income before reclassifications	236			—			—			123			—			359
	Amounts reclassified from AOCI	—			—			—			6			—			6
	Net other comprehensive income	236			—			—			129			—			365
	Balance as of June 30, 2014	$	3,843		$	—		$	—		$	135		$	—		$	3,978
	The changes in AOCI balances by component (after-tax) for the six months ended June 30, 2014 are as follows:
	(in thousands)	Foreign			Ownership Share of				Defined Benefit			Unrealized			Unrealized			Accumulated
		Currency			Equity Method				Pension and			Gain (Loss) on			Gain on			Other
		Translation			Investees’ Other				Postretirement Plans			Derivative			Available-for-			Comprehensive
					Comprehensive							Contracts			Sale Securities			Income (Loss), Net
					Income (Loss)
	Attributable to Fluor Corporation:
	Balance as of December 31, 2013	$	(164	)	$		(32,274	)	$	(258,297	)	$	(7,642	)	$	176		$	(298,201	)
	Other comprehensive income (loss) before reclassifications	4,751			10,345				(951		)	273			202			14,620
	Amounts reclassified from AOCI	—			—				4,108			164			11			4,283
	Net other comprehensive income	4,751			10,345				3,157			437			213			18,903
	Balance as of June 30, 2014	$	4,587		$	(21,929		)	$	(255,140	)	$	(7,205	)	$	389		$	(279,298	)
	Attributable to Noncontrolling Interests:
	Balance as of December 31, 2013	$	7,885		$	—			$	—		$	67		$	—		$	7,952
Other comprehensive income (loss) before reclassifications	(4,042		)	—				—			59			—			(3,983		)
Amounts reclassified from AOCI	—			—				—			9			—			9
Net other comprehensive income (loss)	(4,042		)	—				—			68			—			(3,974		)
Balance as of June 30, 2014	$	3,843		$	—			$	—		$	135		$	—		$	3,978
The changes in AOCI balances by component (after-tax) for the three months ended June 30, 2013 are as follows:
(in thousands)	Foreign			Ownership Share of			Defined Benefit			Unrealized			Unrealized Gain			Accumulated Other
	Currency			Equity Method			Pension and			Loss on			(Loss) on Available-			Comprehensive
	Translation			Investees’ Other			Postretirement Plans			Derivative			for-Sale Securities			Income (Loss), Net
				Comprehensive						Contracts
				Income (Loss)
Attributable to Fluor Corporation:
Balance as of March 31, 2013	$	30,961		$	(42,805	)	$	(245,483	)	$	(8,807	)	$	813		$	(265,321	)
Other comprehensive income (loss) before reclassifications	(41,863		)	5,877			(423		)	(2,525		)	(895		)	(39,829		)
Amounts reclassified from AOCI	—			—			2,007			531			(61		)	2,477
Net other comprehensive income (loss)	(41,863		)	5,877			1,584			(1,994		)	(956		)	(37,352		)
Balance as of June 30, 2013	$	(10,902	)	$	(36,928	)	$	(243,899	)	$	(10,801	)	$	(143	)	$	(302,673	)
Attributable to Noncontrolling Interest:
Balance as of March 31, 2013	$	8,217		$	—		$	—		$	—		$	—		$	8,217
Other comprehensive income before reclassifications	560			—			—			—			—			560
Amounts reclassified from AOCI	—			—			—			—			—			—
Net other comprehensive income	560			—			—			—			—			560
Balance as of June 30, 2013	$	8,777		$	—		$	—		$	—		$	—		$	8,777
The changes in AOCI balances by component (after-tax) for the six months ended June 30, 2013 are as follows:
(in thousands)	Foreign			Ownership Share of			Defined Benefit			Unrealized			Unrealized Gain			Accumulated Other
	Currency			Equity Method			Pension and			Gain (Loss) on			(Loss) on Available-			Comprehensive
	Translation			Investees’ Other			Postretirement Plans			Derivative			for-Sale Securities			Income (Loss), Net
				Comprehensive						Contracts
				Income (Loss)
Attributable to Fluor Corporation:
Balance as of December 31, 2012	$	45,899		$	(43,019	)	$	(252,724	)	$	(8,960	)	$	954		$	(257,850	)
Other comprehensive income (loss) before reclassifications	(56,801		)	6,091			4,796			(2,440		)	(1,012		)	(49,366		)
Amounts reclassified from AOCI	—			—			4,029			599			(85		)	4,543
Net other comprehensive income (loss)	(56,801		)	6,091			8,825			(1,841		)	(1,097		)	(44,823		)
Balance as of June 30, 2013	$	(10,902	)	$	(36,928	)	$	(243,899	)	$	(10,801	)	$	(143	)	$	(302,673	)
Attributable to Noncontrolling Interest:
Balance as of December 31, 2012	$	8,723		$	—		$	—		$	1		$	—		$	8,724
Other comprehensive income before reclassifications	54			—			—			—			—			54
Amounts reclassified from AOCI	—			—			—			(1		)	—			(1		)
Net other comprehensive income (loss)	54			—			—			(1		)	—			53
Balance as of June 30, 2013	$	8,777		$	—		$	—		$	—		$	—		$	8,777
The significant items reclassified out of AOCI and the corresponding location in and impact in the Condensed Consolidated Statement of Earnings are as follows:
	Location in		Three Months Ended						Six Months Ended
	Condensed Consolidated		June 30,						June 30,
(in thousands)	Statement of Earnings		2014			2013			2014			2013
Component of AOCI:
Defined benefit pension plan adjustments	Various accounts(1)		$	(3,291	)	$	(3,210	)	$	(6,572	)	$	(6,446	)
Income tax benefit	Income tax expense		1,234			1,203			2,464			2,417
Net of tax			$	(2,057	)	$	(2,007	)	$	(4,108	)	$	(4,029	)
Unrealized gain (loss) on derivative contracts:
Commodity contracts and foreign currency contracts	Total cost of revenue		$	420		$	(437	)	$	549		$	(125	)
Interest rate contracts	Interest expense		(420		)	(420		)	(839		)	(839		)
Income tax benefit (net)	Income tax expense		6			326			117			366
Net of tax			6			(531		)	(173		)	(598		)
Less: Noncontrolling interests	Net earnings attributable to noncontrolling interests		(6		)	—			(9		)	1
Net of tax and noncontrolling interests			$	12		$	(531	)	$	(164	)	$	(599	)
Unrealized gain (loss) on available-for-sale securities	Corporate general and administrative expense		$	(4	)	$	98		$	(17	)	$	136
Income tax benefit (expense)	Income tax expense		1			(37		)	6			(51		)
Net of tax			$	(3	)	$	61		$	(11	)	$	85
(1)     Defined benefit pension plan adjustments were reclassified primarily to total cost of revenue and corporate general and administrative expense.

Income_Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2014
Income Taxes	'
Income Taxes	'
	(5)                Income Taxes
	The effective tax rate on earnings from continuing operations for the three and six months ended June 30, 2014 was 31.6 percent and 30.2 percent, respectively, compared to 30.6 percent and 30.5 percent for the corresponding periods of 2013. The slightly higher effective tax rate for the three months ended June 30, 2014 compared to the same period in the prior year was primarily due to a benefit in 2013 of U.S. federal tax research credits which has not been extended beyond 2013. The effective tax rates for the six months ended June 30, 2014 and 2013 were comparable, though 2013 benefited from the federal tax research credits and 2014 benefited from the recognition of a deferred tax benefit attributable to foreign taxes previously paid on certain unremitted foreign earnings. All periods benefited from earnings attributable to noncontrolling interests for which income taxes are not typically the responsibility of the company. The Company’s effective tax rate from discontinued operations for the three and six months ended June 30, 2014 was 35.7 percent.
	The company conducts business globally and, as a result, the company or one or more of its subsidiaries files income tax returns in the U.S. federal jurisdiction and various state and foreign jurisdictions. In the normal course of business, the company is subject to examination by taxing authorities throughout the world, including such major jurisdictions as Australia, Canada, the Netherlands, South Africa, the United Kingdom and the United States. Although the company believes its reserves for its tax positions are reasonable, the final outcome of tax audits could be materially different, both favorably and unfavorably. With few exceptions, the company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations for years before 2006.

Cash_Paid_for_Interest_and_Tax

Cash Paid for Interest and Taxes	6 Months Ended
	Jun. 30, 2014
Cash Paid for Interest and Taxes	'
Cash Paid for Interest and Taxes	'
	(6)                  Cash Paid for Interest and Taxes
	Cash paid for interest was $12 million and $11 million for the six months ended June 30, 2014 and 2013, respectively. Income tax payments, net of refunds, were $142 million and $108 million during the six-month periods ended June 30, 2014 and 2013, respectively.

Earnings_Per_Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share	'
Earnings Per Share	'
	(7)                   Earnings Per Share
	Diluted earnings per share (“EPS”) reflects the assumed exercise or conversion of all dilutive securities using the treasury stock method.
	The calculations of the basic and diluted EPS for the three and six months ended June 30, 2014 and 2013 are presented below:
		Three Months Ended					Six Months Ended
		June 30,					June 30,
	(in thousands, except per share amounts)	2014			2013		2014			2013
	Amounts attributable to Fluor Corporation:
	Earnings from continuing operations	$	162,973		$	161,412	$	312,047		$	327,870
	Loss from discontinued operations, net of taxes	(85,183		)	—		(85,183		)	—
	Net earnings	$	77,790		$	161,412	$	226,864		$	327,870
	Basic EPS:
	Weighted average common shares outstanding	158,465			162,797		159,339			162,603
	Basic EPS attributable to Fluor Corporation:
	Earnings from continuing operations	$	1.03		$	0.99	$	1.96		$	2.02
	Loss from discontinued operations, net of taxes	(0.54		)	—		(0.54		)	—
	Net earnings	$	0.49		$	0.99	$	1.42		$	2.02
	Diluted EPS:
	Weighted average common shares outstanding	158,465			162,797		159,339			162,603
	Diluted effect:
	Employee stock options, restricted stock units and shares and Value Driver Incentive units	1,555			972		1,632			1,082
	Conversion equivalent of dilutive convertible debt	434			366		436			379
	Weighted average diluted shares outstanding	160,454			164,135		161,407			164,064
	Diluted EPS attributable to Fluor Corporation:
	Earnings from continuing operations	$	1.02		$	0.98	$	1.93		$	2
	Loss from discontinued operations, net of taxes	(0.54		)	—		(0.52		)	—
	Net earnings	$	0.48		$	0.98	$	1.41		$	2
	Anti-dilutive securities not included above	680			2,516		560			1,949
	During the three and six months ended June 30, 2014, the company repurchased and cancelled 1,750,885 and 4,212,685 shares of its common stock, respectively, under its stock repurchase program for $132 million and $324 million, respectively.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2014
Fair Value of Financial Instruments	'
Fair Value of Financial Instruments	'
	(8)                  Fair Value of Financial Instruments
	The fair value hierarchy established by ASC 820, “Fair Value Measurement,” prioritizes the use of inputs used in valuation techniques into the following three levels:
	·                       Level 1  – quoted prices in active markets for identical assets and liabilities
	·                       Level 2  – inputs other than quoted prices in active markets for identical assets and liabilities that are observable, either directly or indirectly
	·                       Level 3  – unobservable inputs
	The company measures and reports assets and liabilities at fair value utilizing pricing information received from third parties. The company performs procedures to verify the reasonableness of pricing information received for significant assets and liabilities classified as Level 2.
	The following table presents, for each of the fair value hierarchy levels required under ASC 820-10, the company’s assets and liabilities that are measured at fair value on a recurring basis as of June 30, 2014 and December 31, 2013:
		June 30, 2014												December 31, 2013
		Fair Value Hierarchy												Fair Value Hierarchy
	(in thousands)	Total			Level 1			Level 2			Level 3			Total		Level 1		Level 2		Level 3
	Assets:
	Cash and cash equivalents(1)	$	23,109		$	23,109		$	—		$	—		$	50,081	$	50,081	$	—	$	—
	Marketable securities, current(2)	82,721			—			82,721			—			111,333		—		111,333
	Deferred compensation trusts(3)	89,403			89,403			—			—			87,507		87,507		—		—
	Marketable securities, noncurrent(4)	333,035			—			333,035			—			275,402		—		275,402		—
	Derivative assets(5)
	Commodity contracts	306			—			306			—			438		—		438		—
	Foreign currency contracts	1,958			—			1,958			—			855		—		855		—
	Liabilities:
	Derivative liabilities(5)
	Commodity contracts	$	6		$	—		$	6		$	—		$	3	$	—	$	3	$	—
	Foreign currency contracts	773			—			773			—			967		—		967		—
	(1)     Consists primarily of registered money market funds valued at fair value. These investments represent the net asset value of the shares of such funds as of the close of business at the end of the period.
	(2)     Consists of investments in U.S. agency securities, U.S. Treasury securities, corporate debt securities, commercial paper and other debt securities with maturities of less than one year that are valued based on pricing models, which are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets.
	(3)     Consists primarily of registered money market funds and an equity index fund valued at fair value. These investments, which are trading securities, represent the net asset value of the shares of such funds as of the close of business at the end of the period based on the last trade or official close of an active market or exchange.
	(4)   Consists of investments in U.S. agency securities, U.S. Treasury securities, corporate debt securities and other debt securities with maturities ranging from one year to three years that are valued based on pricing models, which are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets.
	(5)   See Note 9 for the classification of commodity contracts and foreign currency contracts in the Condensed Consolidated Balance Sheet. Commodity contracts and foreign currency contracts are estimated using standard pricing models with market-based inputs, which take into account the present value of estimated future cash flows.
	All of the company’s financial instruments carried at fair value are included in the table above. All of the above financial instruments are available-for-sale securities except for those held in the deferred compensation trusts (which are trading securities) and derivative assets and liabilities. The company has determined that there was no other-than-temporary impairment of available-for-sale securities with unrealized losses, and the company expects to recover the entire cost basis of the securities. The available-for-sale securities are made up of the following security types as of June 30, 2014: money market funds of $23 million, U.S. agency securities of $87 million, U.S. Treasury securities of $86 million, corporate debt securities of $237 million and commercial paper of $6 million. As of December 31, 2013, available-for-sale securities consisted of money market funds of $50 million, U.S. agency securities of $119 million, U.S. Treasury securities of $26 million, corporate debt securities of $235 million and commercial paper of $7 million. The amortized cost of these available-for-sale securities is not materially different from the fair value. During the three and six months ended June 30, 2014, proceeds from the sales and maturities of available-for-sale securities were $53 million and $117 million, respectively, compared to $131 million and $206 million for the corresponding periods of 2013.
	The carrying values and estimated fair values of the company’s financial instruments that are not required to be measured at fair value in the Condensed Consolidated Balance Sheet are as follows:
				June 30, 2014						December 31, 2013
		Fair Value		Carrying			Fair			Carrying			Fair
	(in thousands)	Hierarchy		Value			Value			Value			Value
	Assets:
	Cash(1)	Level 1		$	1,465,274		$	1,465,274		$	1,444,656		$	1,444,656
	Cash equivalents(2)	Level 2		694,426			694,426			788,845			788,845
	Marketable securities, current(3)	Level 2		76,981			76,981			74,690			74,690
	Notes receivable, including noncurrent portion(4)	Level 3		21,611			21,611			27,602			27,602
	Liabilities:
	3.375% Senior Notes(5)	Level 2		$	496,825		$	511,188		$	496,604		$	484,204
	1.5% Convertible Senior Notes(5)	Level 2		18,325			53,234			18,398			54,027
	Other borrowings(6)	Level 2		10,892			10,892			11,441			11,441
	(1)   Cash consists of bank deposits. Carrying amounts approximate fair value.
	(2)     Cash equivalents consist of held-to-maturity time deposits with maturities of three months or less at the date of purchase. The carrying amounts of these time deposits approximate fair value because of the short-term maturity of these instruments.
	(3)     Marketable securities, current consist of held-to-maturity time deposits with original maturities greater than three months that will mature within one year. The carrying amounts of these time deposits approximate fair value because of the short-term maturity of these instruments. Amortized cost is not materially different from the fair value.
	(4)   Notes receivable are carried at net realizable value which approximates fair value. Factors considered by the company in determining the fair value include the credit worthiness of the borrower, current interest rates, the term of the note and any collateral pledged as security. Notes receivable are periodically assessed for impairment.
	(5)   The fair value of the 3.375% Senior Notes and 1.5% Convertible Senior Notes are estimated based on quoted market prices for similar issues.
	(6)   Other borrowings represent amounts outstanding under a short-term credit facility. The carrying amount of borrowings under this credit facility approximates fair value because of the short-term maturity.

Derivatives_and_Hedging

Derivatives and Hedging	6 Months Ended
	Jun. 30, 2014
Derivatives and Hedging	'
Derivatives and Hedging	'
	(9)                  Derivatives and Hedging
	The company limits exposure to foreign currency fluctuations in most of its engineering and construction contracts through provisions that require client payments in currencies corresponding to the currencies in which cost is incurred. Certain financial exposure, which includes currency and commodity price risk associated with engineering and construction contracts, currency risk associated with monetary assets and liabilities denominated in nonfunctional currencies and risk associated with interest rate volatility, may subject the company to earnings volatility. In cases where financial exposure is identified, the company generally implements a hedging strategy utilizing derivative instruments as hedging instruments to mitigate the risk. These hedging instruments are designated as either fair value or cash flow hedges in accordance with ASC 815, “Derivatives and Hedging.” The company formally documents its hedge relationships at inception, including identification of the hedging instruments and the hedged items, as well as its risk management objectives and strategies for undertaking the hedge transaction. The company also formally assesses, both at inception and at least quarterly thereafter, whether the hedging instruments are highly effective in offsetting changes in the fair value of the hedged items. The fair values of all hedging instruments are recognized as assets or liabilities at the balance sheet date. For fair value hedges, the effective portion of the change in the fair value of the hedging instrument is offset against the change in the fair value of the underlying asset or liability through earnings. For cash flow hedges, the effective portion of the hedging instruments’ gains or losses due to changes in fair value are recorded as a component of AOCI and are reclassified into earnings when the hedged items settle. Any ineffective portion of a hedging instrument’s change in fair value is immediately recognized in earnings. The company does not enter into derivative instruments for speculative purposes. The company maintains master netting arrangements with certain counterparties to facilitate the settlement of derivative instruments; however, the company reports the fair value of derivative instruments on a gross basis.
	As of June 30, 2014, the company had total gross notional amounts of $165 million of foreign currency contracts and $7 million of commodity contracts outstanding relating to engineering and construction contract obligations and monetary assets and liabilities denominated in nonfunctional currencies. The foreign currency contracts are of varying duration, none of which extend beyond June 2016. The commodity contracts are of varying duration, none of which extend beyond May 2017. The impact to earnings due to hedge ineffectiveness was immaterial for the three and six months ended June 30, 2014 and 2013.
	The fair values of derivatives designated as hedging instruments under ASC 815 as of June 30, 2014 and December 31, 2013 were as follows:
		Asset Derivatives								Liability Derivatives
		Balance Sheet		June 30,			December 31,			Balance Sheet		June 30,			December 31,
	(in thousands)	Location		2014			2013			Location		2014			2013
	Commodity contracts	Other current assets		$	75		$	296		Other accrued liabilities		$	6		$	3
	Foreign currency contracts	Other current assets		1,859			855			Other accrued liabilities		585			967
	Commodity contracts	Other assets		231			142			Noncurrent liabilities		—			—
	Foreign currency contracts	Other assets		99			—			Noncurrent liabilities		188			—
	Total			$	2,264		$	1,293				$	779		$	970
	The pre-tax net gains recognized in earnings associated with the hedging instruments designated as fair value hedges for the three and six months ended June 30, 2014 and 2013 were as follows:
				Three Months Ended						Six Months Ended
				June 30,						June 30,
	Fair Value Hedges (in thousands)	Location of Gain		2014			2013			2014			2013
	Foreign currency contracts	Corporate general and administrative expense		$	2,092		$	326		$	3,351		$	4,145
	The net gains recognized in earnings on hedging instruments for the fair value hedges noted in the table above offset the net losses recognized in earnings on the hedged items in the same locations in the Condensed Consolidated Statement of Earnings.
	The after-tax amount of gain (loss) recognized in OCI associated with the derivative instruments designated as cash flow hedges was as follows:
		Three Months Ended						Six Months Ended
		June 30,						June 30,
	Cash Flow Hedges (in thousands)	2014			2013			2014			2013
	Commodity contracts	$	92		$	1		$	(51	)	$	32
	Foreign currency contracts	724			(2,526		)	323			(2,472		)
	Total	$	816		$	(2,525	)	$	272		$	(2,440	)
	The after-tax amount of gain (loss) reclassified from AOCI into earnings associated with the derivative instruments designated as cash flow hedges was as follows:
				Three Months Ended						Six Months Ended
				June 30,						June 30,
	Cash Flow Hedges (in thousands)	Location of Gain (Loss)		2014			2013			2014			2013
	Commodity contracts	Total cost of revenue		$	(8	)	$	13		$	70		$	60
	Foreign currency contracts	Total cost of revenue		282			(282		)	290			(135		)
	Interest rate contracts	Interest expense		(262		)	(262		)	(525		)	(524		)
	Total			$	12		$	(531	)	$	(165	)	$	(599	)

Retirement_Benefits

Retirement Benefits	6 Months Ended
	Jun. 30, 2014
Retirement Benefits	'
Retirement Benefits	'
	(10)        Retirement Benefits
	Net periodic pension expense for the U.S. and non-U.S. defined benefit pension plans includes the following components:
		U.S. Pension Plan												Non-U.S. Pension Plans
		Three Months Ended						Six Months Ended						Three Months Ended						Six Months Ended
		June 30,						June 30,						June 30,						June 30,
	(in thousands)	2014			2013			2014			2013			2014			2013			2014			2013
	Service cost	$	950		$	1,614		$	1,900		$	3,227		$	4,176		$	3,814		$	8,329		$	7,696
	Interest cost	7,918			7,275			15,837			14,550			8,881			7,919			17,685			15,936
	Expected return on assets	(7,526		)	(7,744		)	(15,052		)	(15,488		)	(12,361		)	(11,421		)	(24,609		)	(22,980		)
	Amortization of prior service cost	188			25			375			51			—			—			—			—
	Recognized net actuarial loss	1,108			1,510			2,217			3,020			1,996			1,675			3,980			3,375
	Net periodic pension expense	$	2,638		$	2,680		$	5,277		$	5,360		$	2,692		$	1,987		$	5,385		$	4,027
	The company currently expects to fund approximately $30 million to $60 million into its defined benefit pension plans during 2014, which is expected to be in excess of the minimum funding required. During the six months ended June 30, 2014, contributions of approximately $12 million were made by the company.

Financing_Arrangements

Financing Arrangements	6 Months Ended
	Jun. 30, 2014
Financing Arrangements	'
Financing Arrangements	'
	(11)           Financing Arrangements
	In May 2014, the company entered into a $1.7 billion Revolving Loan and Letter of Credit Facility Agreement (“Credit Facility”) that matures in 2019. Borrowings under the Credit Facility bear interest at rates based on the Eurodollar Rate or an alternative base rate, plus an applicable borrowing margin. The Credit Facility may be increased up to an additional $500 million subject to certain conditions, and contains customary financial and restrictive covenants, including a maximum ratio of consolidated debt to tangible net worth of one-to-one and a cap on the aggregate amount of debt of $750 million for the company’s subsidiaries. On the same day, the company terminated its $1.2 billion Revolving Performance Letter of Credit Facility Agreement dated December 14, 2010 and all outstanding letters of credit thereunder have been assigned or otherwise transferred to the new Credit Facility.
	In conjunction with the Credit Facility, the company also amended its existing $1.8 billion Revolving Loan and Letter of Credit Facility Agreement dated November 9, 2012 to extend the maturity date to May 2019 and increase the cap on the aggregate amount of debt for the company’s subsidiaries from $600 million to $750 million.
	In September 2011, the company issued $500 million of 3.375% Senior Notes (the “2011 Notes”) due September 15, 2021 and received proceeds of $492 million, net of underwriting discounts and debt issuance costs. Interest on the 2011 Notes is payable semi-annually on March 15 and September 15 of each year, and began on March 15, 2012. The company may, at any time, redeem the 2011 Notes at a redemption price equal to 100 percent of the principal amount, plus a “make whole” premium described in the indenture. Additionally, if a change of control triggering event occurs, as defined by the terms of the indenture, the company will be required to offer to purchase the 2011 Notes at a purchase price equal to 101 percent of their principal amount, plus accrued and unpaid interest, if any, to the date of purchase. The company is generally not limited under the indenture governing the 2011 Notes in its ability to incur additional indebtedness provided the company is in compliance with certain restrictive covenants, including restrictions on liens and restrictions on sale and leaseback transactions.
	In February 2004, the company issued $330 million of 1.5% Convertible Senior Notes (the “2004 Notes”) due February 15, 2024 and received proceeds of $323 million, net of underwriting discounts. In December 2004, the company irrevocably elected to pay the principal amount of the 2004 Notes in cash. The 2004 Notes are convertible if a specified trading price of the company’s common stock (the “trigger price”) is achieved and maintained for a specified period. The trigger price condition was satisfied during the fourth quarter of 2013 and second quarter of 2014 and the 2004 Notes were therefore classified as short-term debt as of December 31, 2013 and June 30, 2014, respectively. During the six months ended June 30, 2014, holders converted less than $0.1 million of the 2004 Notes in exchange for the principal balance owed in cash plus 1,727 shares of the company’s common stock. During the six months ended June 30, 2013, holders converted less than $0.1 million of the 2004 Notes in exchange for the principal balance owed in cash plus 61 shares of the company’s common stock.
	The following table presents information related to the liability and equity components of the 2004 Notes:
		June 30,		December 31,
	(in thousands)	2014		2013
	Carrying value of the equity component	$	19,516	$	19,519
	Principal amount and carrying value of the liability component	18,325		18,398
	The 2004 Notes are convertible into shares of the company’s common stock (par value $0.01 per share) at a conversion rate of 36.6729 shares per each $1,000 principal amount of the 2004 Notes. Interest expense for the three and six month periods included original coupon interest of less than $0.1 million and $0.1 million, respectively, during both 2014 and 2013. The if-converted value of $52 million was in excess of the principal value as of June 30, 2014.
	In July 2013, the company established a short-term credit facility to purchase land and construction equipment associated with the equipment operations in the Global Services segment. Outstanding borrowings under the facility were $11 million as of both June 30, 2014 and December 31, 2013.
	As of June 30, 2014, the company was in compliance with all of the financial covenants related to its debt agreements.

StockBased_Plans

Stock-Based Plans	6 Months Ended
	Jun. 30, 2014
Stock-Based Plans	'
Stock-Based Plans	'
	(12)           Stock-Based Plans
	The company’s executive and director stock-based compensation plans are described, and informational disclosures provided, in the Notes to Consolidated Financial Statements included in the Form 10-K for the year ended December 31, 2013. In the first half of 2014 and 2013, restricted stock units and restricted shares totaling 370,014 and 468,695, respectively, were granted to executives and directors, at weighted-average per share prices of $79.06 and $61.30, respectively. For the company’s executives, the restricted units and shares granted in 2014 and 2013 generally vest ratably over three years. For the company’s directors, the restricted units and shares granted in 2014 and 2013 vest or vested on the first anniversary of the grant. During the first half of 2014 and 2013, options for the purchase of 684,486 shares at a weighted-average exercise price of $79.19 per share and 884,574 shares at a weighted-average exercise price of $61.45 per share, respectively, were awarded to executives. The options granted in 2014 and 2013 vest ratably over three years. The options expire ten years after the grant date. In the first half  of 2014 and 2013, performance-based Value Driver Incentive (“VDI”) units totaling 315,551 and 385,742, respectively, were granted to executives at weighted-average per share prices of $79.19 and $61.45, respectively. The number of units is adjusted at the end of each performance period based on the achievement of performance criteria. The VDI awards granted in 2014 and 2013 vest after a period of approximately three years.

Noncontrolling_Interests

Noncontrolling Interests	6 Months Ended
	Jun. 30, 2014
Noncontrolling Interests	'
Noncontrolling Interests	'
	(13)           Noncontrolling Interests
	The company applies the provisions of ASC 810-10-45, which establishes accounting and reporting standards for ownership interests in subsidiaries held by parties other than the parent, the amount of consolidated net earnings attributable to the parent and to the noncontrolling interests, changes in a parent’s ownership interest and the valuation of retained noncontrolling equity investments when a subsidiary is deconsolidated.
	As required by ASC 810-10-45, the company has separately disclosed on the face of the Condensed Consolidated Statement of Earnings for all periods presented the amount of net earnings attributable to the company and the amount of net earnings attributable to noncontrolling interests. For the three and six months ended June 30, 2014, net earnings attributable to noncontrolling interests were $32 million and $76 million, respectively. For the three and six months ended June 30, 2013, net earnings attributable to noncontrolling interests were $46 million and $93 million, respectively. Income taxes associated with earnings attributable to noncontrolling interests were immaterial in both periods presented. Distributions paid to noncontrolling interests were $44 million and $46 million for the six months ended June 30, 2014 and 2013, respectively. Capital contributions by noncontrolling interests were $0.2 million and $1 million for the six months ended June 30, 2014 and 2013, respectively.

Contingencies_and_Commitments

Contingencies and Commitments	6 Months Ended
	Jun. 30, 2014
Contingencies and Commitments	'
Contingencies and Commitments	'
	(14)           Contingencies and Commitments
	The company and certain of its subsidiaries are subject to litigation, claims and other commitments and contingencies arising in the ordinary course of business. The company currently does not expect that the ultimate resolution of these matters will have a material adverse effect on its consolidated financial position or results of operations.
	As of June 30, 2014, several matters were in the litigation and dispute resolution process. The following discussion provides a background and current status of these matters:
	St. Joe Minerals Matters
	Since 1995, the company has been named as a defendant in a number of lawsuits alleging injuries resulting from the lead business of St. Joe Minerals Corporation (“St. Joe”) and The Doe Run Company (“Doe Run”) in Herculaneum, Missouri, which are discontinued operations. The company was named as a defendant in these lawsuits as a result of its ownership or other interests in St. Joe and Doe Run in the period between 1981 and 1994. In 1994, the company sold its interests in St. Joe and Doe Run, along with all liabilities associated with the lead business, pursuant to a sale agreement in which the buyer agreed to indemnify the company for those liabilities. Until December 2010, substantially all the lawsuits were settled and paid by the buyer; and in all cases the company was fully released.
	In December 2010, the buyer settled with certain plaintiffs without obtaining a release for the benefit of the company, leaving the company to defend its case with these plaintiffs in the City of St. Louis Circuit Court. In late July 2011, the jury reached an unexpected verdict in this case, ruling in favor of 16 of the plaintiffs and against the company and certain former subsidiaries for $38.5 million in compensatory and economic damages and $320 million in punitive damages. In August 2011, the court entered judgments based on the verdict. In December 2011, the company appealed the judgments of the court.
	In June 2014, the Missouri Court of Appeals issued its opinion reversing and remanding to the trial court the award of $240 million in punitive damages against Fluor. In addition, the appellate court upheld the judgment for $38.5 million in compensatory and economic damages and $80 million of punitive damages against the company and its former subsidiaries to whom the company has provided certain indemnities relating to the St. Joe and Doe Run businesses. Both parties have filed motions for rehearing with respect to various aspects of the opinion and to transfer the matter to the Missouri Supreme Court. The company will also continue to take steps to enforce its rights to indemnification described above. As a result of the company’s reassessment of an estimated loss contingency in this matter, the company recorded a loss from discontinued operations of $85 million (net of taxes of $47 million) during the three months ended June 30, 2014.
	The company, the buyer and other entities are defendants in 19 additional lawsuits (including consolidated lawsuits) relating to the lead business of St. Joe and Doe Run. The company believes it has strong defenses to these lawsuits and is vigorously defending its position. The company is unable to estimate a range of possible losses in these lawsuits. In addition, the company has filed claims for indemnification under the sale agreement and for other matters raised in these lawsuits. If the company were unsuccessful in any of these lawsuits, or in the prosecution of and collection on our indemnity claims, the company could recognize a material charge within discontinued operations.
	Conex International v. Fluor Enterprises, Inc.
	In November 2006, a Jefferson County, Texas, jury reached an unexpected verdict in the case of Conex International (“Conex”) v. Fluor Enterprises Inc. (“FEI”), ruling in favor of Conex and awarding $99 million in damages related to a 2001 construction project.
	In 2001, Atofina (now part of Total Petrochemicals Inc.) hired Conex International to be the mechanical contractor on a project at Atofina’s refinery in Port Arthur, Texas. FEI was also hired to provide certain engineering advice to Atofina on the project. There was no contract between Conex and FEI. Later in 2001 after the project was complete, Conex and Atofina negotiated a final settlement for extra work on the project. Conex sued FEI in September 2003, alleging damages for interference and misrepresentation and demanding that FEI should pay Conex the balance of the extra work charges that Atofina did not pay in the settlement. Conex also asserted that FEI interfered with Conex’s contract and business relationship with Atofina. The jury verdict awarded damages for the extra work and the alleged interference.
	The company appealed the decision and the judgment against the company was reversed in its entirety in December 2008. Both parties appealed the decision to the Texas Supreme Court, and the court denied both petitions. The company requested rehearing on two issues to the Texas Supreme Court, and that request was denied. The Texas Supreme Court remanded the matter to the trial court for a new trial. The matter was stayed, pending resolution of certain technical issues associated with the 2011 bankruptcy filing by the plaintiff’s parent. These issues have been resolved. The matter has been remanded to the court in Jefferson County, Texas. Based upon the present status of this matter, the company does not believe that there is a reasonable possibility that a loss will be incurred.
	Other Matters
	The company and certain of its clients have made claims arising from the performance under its contracts. The company recognizes revenue, but not profit, for certain claims (including change orders in dispute and unapproved change orders in regard to both scope and price) when it is determined that recovery of incurred costs is probable and the amounts can be reliably estimated. Under ASC 605-35-25, these requirements are satisfied when (a) the contract or other evidence provides a legal basis for the claim, (b) additional costs were caused by circumstances that were unforeseen at the contract date and not the result of deficiencies in the company’s performance, (c) claim-related costs are identifiable and considered reasonable in view of the work performed, and (d) evidence supporting the claim is objective and verifiable. The company periodically evaluates its position and the amounts recognized in revenue with respect to all its claims. Recognized claims against clients amounted to $26 million as of June 30, 2014, and are included in contract work in progress in the accompanying Condensed Consolidated Balance Sheet. There were no recognized claims against clients as of December 31, 2013.
	From time to time, the company enters into significant contracts with the U.S. government and its agencies. Government contracts are subject to audits and investigations by government representatives with respect to the company’s compliance with various restrictions and regulations applicable to government contractors, including but not limited to the allowability of costs incurred under reimbursable contracts. In connection with performing government contracts, the company maintains reserves for estimated exposures associated with these matters.

Guarantees

Guarantees	6 Months Ended
	Jun. 30, 2014
Guarantees	'
Guarantees	'
	(15)           Guarantees
	In the ordinary course of business, the company enters into various agreements providing performance assurances and guarantees to clients on behalf of certain unconsolidated and consolidated partnerships, joint ventures and other jointly executed contracts. These agreements are entered into primarily to support the project execution commitments of these entities. The performance guarantees have various expiration dates ranging from mechanical completion of the facilities being constructed to a period extending beyond contract completion in certain circumstances. The maximum potential amount of future payments that the company could be required to make under outstanding performance guarantees, which represents the remaining cost of work to be performed by or on behalf of third parties under engineering and construction contracts, was estimated to be $14.1 billion as of June 30, 2014. Amounts that may be required to be paid in excess of estimated cost to complete contracts in progress are not estimable. For cost reimbursable contracts, amounts that may become payable pursuant to guarantee provisions are normally recoverable from the client for work performed under the contract. For lump-sum or fixed-price contracts, the performance guarantee amount is the cost to complete the contracted work, less amounts remaining to be billed to the client under the contract. Remaining billable amounts could be greater or less than the cost to complete. In those cases where costs exceed the remaining amounts payable under the contract, the company may have recourse to third parties, such as owners, co-venturers, subcontractors or vendors for claims. The company assessed its performance guarantee obligation as of June 30, 2014 and December 31, 2013 in accordance with ASC 460, “Guarantees” and the carrying value of the liability was not material.
	Financial guarantees, made in the ordinary course of business in certain limited circumstances, are entered into with financial institutions and other credit grantors and generally obligate the company to make payment in the event of a default by the borrower. These arrangements may require the borrower to pledge collateral to support the fulfillment of the borrower’s obligation.

Variable_Interest_Entities

Variable Interest Entities	6 Months Ended
	Jun. 30, 2014
Variable Interest Entities	'
Variable Interest Entities	'
	(16)       Variable Interest Entities
	Variable Interest Entities
	In the normal course of business, the company forms partnerships or joint ventures primarily for the execution of single contracts or projects. The majority of these partnerships or joint ventures are characterized by a 50 percent or less, noncontrolling ownership or participation interest, with decision making and distribution of expected gains and losses typically being proportionate to the ownership or participation interest. Many of the partnership and joint venture agreements provide for capital calls to fund operations, as necessary. Such funding is infrequent and is not anticipated to be material. The company accounts for its partnerships and joint ventures in accordance with ASC 810.
	In accordance with ASC 810, the company assesses its partnerships and joint ventures at inception to determine if any meet the qualifications of a VIE. The company considers a partnership or joint venture a VIE if either (a) the total equity investment is not sufficient to permit the entity to finance its activities without additional subordinated financial support, (b) characteristics of a controlling financial interest are missing (either the ability to make decisions through voting or other rights, the obligation to absorb the expected losses of the entity or the right to receive the expected residual returns of the entity), or (c) the voting rights of the equity holders are not proportional to their obligations to absorb the expected losses of the entity and/or their rights to receive the expected residual returns of the entity, and substantially all of the entity’s activities either involve or are conducted on behalf of an investor that has disproportionately few voting rights. Upon the occurrence of certain events outlined in ASC 810, the company reassesses its initial determination of whether the partnership or joint venture is a VIE. The majority of the company’s partnerships and joint ventures qualify as VIEs because the total equity investment is typically nominal and not sufficient to permit the entity to finance its activities without additional subordinated financial support.
	The company also performs a qualitative assessment of each VIE to determine if the company is its primary beneficiary, as required by ASC 810. The company concludes that it is the primary beneficiary and consolidates the VIE if the company has both (a) the power to direct the economically significant activities of the entity and (b) the obligation to absorb losses of, or the right to receive benefits from, the entity that could potentially be significant to the VIE. The company considers the contractual agreements that define the ownership structure, distribution of profits and losses, risks, responsibilities, indebtedness, voting rights and board representation of the respective parties in determining if the company is the primary beneficiary. The company also considers all parties that have direct or implicit variable interests when determining whether it is the primary beneficiary. As required by ASC 810, management’s assessment of whether the company is the primary beneficiary of a VIE is continuously performed.
	In most cases, when the company is not the primary beneficiary and not required to consolidate the VIE, the proportionate consolidation method of accounting is used for joint ventures and partnerships in the construction industry, whereby the company recognizes its proportionate share of revenue, cost and profit in its Condensed Consolidated Statement of Earnings and uses the one-line equity method of accounting in the Condensed Consolidated Balance Sheet, which is a common application of ASC 810-10-45-14 in the construction industry. The equity and cost methods of accounting for the investments are also used, depending on the company’s respective ownership interest, amount of influence over the VIE and the nature of services provided by the VIE. The net carrying value of the unconsolidated VIEs classified under “Investments and goodwill” and “Other accrued liabilities” in the Condensed Consolidated Balance Sheet was a net asset of $96 million and $122 million as of June 30, 2014 and December 31, 2013, respectively. Some of the company’s VIEs have debt; however, such debt is typically non-recourse in nature. The company’s maximum exposure to loss as a result of its investments in unconsolidated VIEs is typically limited to the aggregate of the carrying value of the investment and future funding commitments. Future funding commitments as of June 30, 2014 for the unconsolidated VIEs were $20 million.
	In some cases, the company is required to consolidate certain VIEs. As of June 30, 2014, the carrying values of the assets and liabilities associated with the operations of the consolidated VIEs were $1.2 billion and $675 million, respectively. As of December 31, 2013, the carrying values of the assets and liabilities associated with the operations of the consolidated VIEs were $1.2 billion and $731 million, respectively. The assets of a VIE are restricted for use only for the particular VIE and are not available for general operations of the company.
	None of the VIEs are individually material to the company’s results of operations, financial position or cash flows except for the Fluor SKM joint venture, a consolidated joint venture formed for the execution of an iron ore project in Australia, which was material to the company’s revenue for the 2013 period. The company’s results of operations included revenue related to the Fluor SKM joint venture of $102 million and $267 million for the three and six months ended June 30, 2014, respectively, and $538 million and $1.3 billion for the three and six months ended June 30, 2013, respectively.

Operating_Information_by_Segme

Operating Information by Segment	6 Months Ended
	Jun. 30, 2014
Operating Information by Segment	'
Operating Information by Segment	'
	(17)       Operating Information by Segment
	Operating information by reportable segment is as follows:
		Three Months Ended						Six Months Ended
		June 30,						June 30,
	External Revenue (in millions)	2014			2013			2014			2013
	Oil & Gas	$	2,817.50		$	2,856.50		$	5,547.20		$	5,625.80
	Industrial & Infrastructure	1,486.50			3,082.30			3,154.60			6,214.50
	Government	598.6			674.5			1,191.80			1,425.80
	Global Services	145.1			154.4			287.8			304.3
	Power	204			422.6			454.9			805.6
	Total external revenue	$	5,251.70		$	7,190.30		$	10,636.30		$	14,376.00
	The Global Services segment represents a combination of other operating segments that do not meet the ASC 280 requirements for separate disclosure or aggregation. Intercompany revenue for the Global Services segment, excluded from the amounts shown above, was $139 million and $275 million for the three and six months ended June 30, 2014, respectively, and $126 million and $243 million for the three and six months ended June 30, 2013, respectively.
		Three Months Ended						Six Months Ended
		June 30,						June 30,
	Segment Profit (in millions)	2014			2013			2014			2013
	Oil & Gas	$	167.4		$	106.8		$	305.3		$	211.3
	Industrial & Infrastructure	97.1			129.4			197.4			256.3
	Government	13.9			13.6			26.4			54.9
	Global Services	19.8			27.6			38.6			55.3
	Power	14.9			10.6			13.5			3.8
	Total segment profit	$	313.1		$	288		$	581.2		$	581.6
	Power segment profit for the three and six months ended June 30, 2014 included the operations of NuScale, which are primarily for research and development activities associated with the licensing and commercialization of small modular nuclear reactor technology. In the second quarter of 2014, NuScale entered into a cost-sharing agreement with the U.S. Department of Energy (“DOE”) establishing the terms and conditions of a multi-year funding award and, as a result, accrued for the reimbursement of $17 million of certain qualified expenditures. The NuScale expenses, included in the determination of segment profit, were $4 million and $17 million (net of the $17 million accrual for both periods), respectively, for the three and six months ended June 30, 2014 and $13 million and $28 million, respectively, for the three and six months ended June 30, 2013. The company will recognize the cost-sharing award with the DOE, when earned, as a reduction of “Total cost of revenue” in the Condensed Consolidated Statement of Earnings and, correspondingly, as an increase to segment profit in the period for which the related costs are recognized, with the exception of certain pre-award costs which were recognized in the second quarter of 2014 upon entering into the cost-sharing agreement.
	A reconciliation of total segment profit to earnings from continuing operations before taxes is as follows:
		Three Months Ended						Six Months Ended
	Reconciliation of Total Segment Profit to Earnings from	June 30,						June 30,
	Continuing Operations Before Taxes (in millions)	2014			2013			2014			2013
	Total segment profit	$	313.1		$	288		$	581.2		$	581.6
	Corporate general and administrative expense	(56.7		)	(31.9		)	(94.5		)	(64.5		)
	Interest income (expense), net	(3.3		)	(2.2		)	(6.4		)	(5.2		)
	Earnings attributable to noncontrolling interests	32.2			44.8			76.4			93.1
	Earnings from continuing operations before taxes	$	285.3		$	298.7		$	556.7		$	605
	Total assets by segment are as follows:
		June 30,			December 31,
	Total Assets by Segment (in millions)	2014			2013
	Oil & Gas	$	1,795.70		$	1,643.80
	Industrial & Infrastructure	896.4			909.7
	Government	512.1			580.6
	Global Services	822.4			758.9
	Power	128.8			154.9

Other_Comprehensive_Income_Los1

Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2014
Other Comprehensive Income (Loss)	'
Schedule of tax effects of components of other comprehensive income (loss) ("OCI")	'
		Three Months Ended									Three Months Ended
		June 30, 2014									June 30, 2013
					Tax									Tax
		Before-Tax			Benefit			Net-of-Tax			Before-Tax			Benefit			Net-of-Tax
	(in thousands)	Amount			(Expense)			Amount			Amount			(Expense)			Amount
	Other comprehensive income (loss):
	Foreign currency translation adjustment	$	21,359		$	(7,921	)	$	13,438		$	(66,421	)	$	25,118		$	(41,303	)
	Ownership share of equity method investees’ other comprehensive income	19,176			(6,833		)	12,343			8,272			(2,395		)	5,877
	Defined benefit pension and postretirement plan adjustments	2,415			(906		)	1,509			2,535			(951		)	1,584
	Unrealized gain (loss) on derivative contracts	1,426			(492		)	934			(3,191		)	1,197			(1,994		)
	Unrealized gain (loss) on debt securities	369			(138		)	231			(1,530		)	574			(956		)
	Total other comprehensive income (loss)	44,745			(16,290		)	28,455			(60,335		)	23,543			(36,792		)
	Less: Other comprehensive income attributable to noncontrolling interests	365			—			365			560			—			560
	Other comprehensive income (loss) attributable to Fluor Corporation	$	44,380		$	(16,290	)	$	28,090		$	(60,895	)	$	23,543		$	(37,352	)
		Six Months Ended									Six Months Ended
		June 30, 2014									June 30, 2013
					Tax									Tax
		Before-Tax			Benefit			Net-of-Tax			Before-Tax			Benefit			Net-of-Tax
	(in thousands)	Amount			(Expense)			Amount			Amount			(Expense)			Amount
	Other comprehensive income (loss):
	Foreign currency translation adjustment	$	3,559		$	(2,850	)	$	709		$	(90,827	)	$	34,080		$	(56,747	)
	Ownership share of equity method investees’ other comprehensive income	18,232			(7,887		)	10,345			8,353			(2,262		)	6,091
	Defined benefit pension and postretirement plan adjustments	5,051			(1,894		)	3,157			14,120			(5,295		)	8,825
	Unrealized gain (loss) on derivative contracts	781			(276		)	505			(2,947		)	1,105			(1,842		)
	Unrealized gain (loss) on debt securities	340			(127		)	213			(1,755		)	658			(1,097		)
	Total other comprehensive income (loss)	27,963			(13,034		)	14,929			(73,056		)	28,286			(44,770		)
	Less: Other comprehensive income (loss) attributable to noncontrolling interests	(3,974		)	—			(3,974		)	53			—			53
	Other comprehensive income (loss) attributable to Fluor Corporation	$	31,937		$	(13,034	)	$	18,903		$	(73,109	)	$	28,286		$	(44,823	)
Schedule of changes in accumulated other comprehensive income ("AOCI") balances by component (after-tax)	'
	(in thousands)	Foreign			Ownership Share of			Defined Benefit			Unrealized			Unrealized			Accumulated
		Currency			Equity Method			Pension and			Gain (Loss) on			Gain on			Other
		Translation			Investees’ Other			Postretirement Plans			Derivative			Available-for-			Comprehensive
					Comprehensive						Contracts			Sale Securities			Income (Loss), Net
					Income (Loss)
	Attributable to Fluor Corporation:
	Balance as of March 31, 2014	$	(8,615	)	$	(34,272	)	$	(256,649	)	$	(8,010	)	$	158		$	(307,388	)
	Other comprehensive income (loss) before reclassifications	13,202			12,343			(548		)	817			228			26,042
	Amounts reclassified from AOCI	—			—			2,057			(12		)	3			2,048
	Net other comprehensive income	13,202			12,343			1,509			805			231			28,090
	Balance as of June 30, 2014	$	4,587		$	(21,929	)	$	(255,140	)	$	(7,205	)	$	389		$	(279,298	)
	Attributable to Noncontrolling Interests:
	Balance as of March 31, 2014	$	3,607		$	—		$	—		$	6		$	—		$	3,613
	Other comprehensive income before reclassifications	236			—			—			123			—			359
	Amounts reclassified from AOCI	—			—			—			6			—			6
	Net other comprehensive income	236			—			—			129			—			365
	Balance as of June 30, 2014	$	3,843		$	—		$	—		$	135		$	—		$	3,978
	(in thousands)	Foreign			Ownership Share of				Defined Benefit			Unrealized			Unrealized			Accumulated
		Currency			Equity Method				Pension and			Gain (Loss) on			Gain on			Other
		Translation			Investees’ Other				Postretirement Plans			Derivative			Available-for-			Comprehensive
					Comprehensive							Contracts			Sale Securities			Income (Loss), Net
					Income (Loss)
	Attributable to Fluor Corporation:
	Balance as of December 31, 2013	$	(164	)	$		(32,274	)	$	(258,297	)	$	(7,642	)	$	176		$	(298,201	)
	Other comprehensive income (loss) before reclassifications	4,751			10,345				(951		)	273			202			14,620
	Amounts reclassified from AOCI	—			—				4,108			164			11			4,283
	Net other comprehensive income	4,751			10,345				3,157			437			213			18,903
	Balance as of June 30, 2014	$	4,587		$	(21,929		)	$	(255,140	)	$	(7,205	)	$	389		$	(279,298	)
	Attributable to Noncontrolling Interests:
	Balance as of December 31, 2013	$	7,885		$	—			$	—		$	67		$	—		$	7,952
	Other comprehensive income (loss) before reclassifications	(4,042		)	—				—			59			—			(3,983		)
	Amounts reclassified from AOCI	—			—				—			9			—			9
	Net other comprehensive income (loss)	(4,042		)	—				—			68			—			(3,974		)
	Balance as of June 30, 2014	$	3,843		$	—			$	—		$	135		$	—		$	3,978
	(in thousands)	Foreign			Ownership Share of			Defined Benefit			Unrealized			Unrealized Gain			Accumulated Other
		Currency			Equity Method			Pension and			Loss on			(Loss) on Available-			Comprehensive
		Translation			Investees’ Other			Postretirement Plans			Derivative			for-Sale Securities			Income (Loss), Net
					Comprehensive						Contracts
					Income (Loss)
	Attributable to Fluor Corporation:
	Balance as of March 31, 2013	$	30,961		$	(42,805	)	$	(245,483	)	$	(8,807	)	$	813		$	(265,321	)
	Other comprehensive income (loss) before reclassifications	(41,863		)	5,877			(423		)	(2,525		)	(895		)	(39,829		)
	Amounts reclassified from AOCI	—			—			2,007			531			(61		)	2,477
	Net other comprehensive income (loss)	(41,863		)	5,877			1,584			(1,994		)	(956		)	(37,352		)
	Balance as of June 30, 2013	$	(10,902	)	$	(36,928	)	$	(243,899	)	$	(10,801	)	$	(143	)	$	(302,673	)
	Attributable to Noncontrolling Interest:
	Balance as of March 31, 2013	$	8,217		$	—		$	—		$	—		$	—		$	8,217
	Other comprehensive income before reclassifications	560			—			—			—			—			560
	Amounts reclassified from AOCI	—			—			—			—			—			—
	Net other comprehensive income	560			—			—			—			—			560
	Balance as of June 30, 2013	$	8,777		$	—		$	—		$	—		$	—		$	8,777
	(in thousands)	Foreign			Ownership Share of			Defined Benefit			Unrealized			Unrealized Gain			Accumulated Other
		Currency			Equity Method			Pension and			Gain (Loss) on			(Loss) on Available-			Comprehensive
		Translation			Investees’ Other			Postretirement Plans			Derivative			for-Sale Securities			Income (Loss), Net
					Comprehensive						Contracts
					Income (Loss)
	Attributable to Fluor Corporation:
	Balance as of December 31, 2012	$	45,899		$	(43,019	)	$	(252,724	)	$	(8,960	)	$	954		$	(257,850	)
	Other comprehensive income (loss) before reclassifications	(56,801		)	6,091			4,796			(2,440		)	(1,012		)	(49,366		)
	Amounts reclassified from AOCI	—			—			4,029			599			(85		)	4,543
	Net other comprehensive income (loss)	(56,801		)	6,091			8,825			(1,841		)	(1,097		)	(44,823		)
	Balance as of June 30, 2013	$	(10,902	)	$	(36,928	)	$	(243,899	)	$	(10,801	)	$	(143	)	$	(302,673	)
	Attributable to Noncontrolling Interest:
Balance as of December 31, 2012	$	8,723		$	—		$	—		$	1		$	—		$	8,724
Other comprehensive income before reclassifications	54			—			—			—			—			54
Amounts reclassified from AOCI	—			—			—			(1		)	—			(1		)
Net other comprehensive income (loss)	54			—			—			(1		)	—			53
Balance as of June 30, 2013	$	8,777		$	—		$	—		$	—		$	—		$	8,777
Schedule of significant items reclassified out of AOCI and corresponding location in and impact in Condensed Consolidated Statement of Earnings	'
		Location in		Three Months Ended						Six Months Ended
		Condensed Consolidated		June 30,						June 30,
	(in thousands)	Statement of Earnings		2014			2013			2014			2013
	Component of AOCI:
	Defined benefit pension plan adjustments	Various accounts(1)		$	(3,291	)	$	(3,210	)	$	(6,572	)	$	(6,446	)
	Income tax benefit	Income tax expense		1,234			1,203			2,464			2,417
	Net of tax			$	(2,057	)	$	(2,007	)	$	(4,108	)	$	(4,029	)
	Unrealized gain (loss) on derivative contracts:
	Commodity contracts and foreign currency contracts	Total cost of revenue		$	420		$	(437	)	$	549		$	(125	)
	Interest rate contracts	Interest expense		(420		)	(420		)	(839		)	(839		)
	Income tax benefit (net)	Income tax expense		6			326			117			366
	Net of tax			6			(531		)	(173		)	(598		)
	Less: Noncontrolling interests	Net earnings attributable to noncontrolling interests		(6		)	—			(9		)	1
	Net of tax and noncontrolling interests			$	12		$	(531	)	$	(164	)	$	(599	)
	Unrealized gain (loss) on available-for-sale securities	Corporate general and administrative expense		$	(4	)	$	98		$	(17	)	$	136
	Income tax benefit (expense)	Income tax expense		1			(37		)	6			(51		)
	Net of tax			$	(3	)	$	61		$	(11	)	$	85
	(1)     Defined benefit pension plan adjustments were reclassified primarily to total cost of revenue and corporate general and administrative expense.

Earnings_Per_Share_Tables

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2014
Earnings Per Share	'
Schedule of calculations of basic and diluted EPS	'
		Three Months Ended					Six Months Ended
		June 30,					June 30,
	(in thousands, except per share amounts)	2014			2013		2014			2013
	Amounts attributable to Fluor Corporation:
	Earnings from continuing operations	$	162,973		$	161,412	$	312,047		$	327,870
	Loss from discontinued operations, net of taxes	(85,183		)	—		(85,183		)	—
	Net earnings	$	77,790		$	161,412	$	226,864		$	327,870
	Basic EPS:
	Weighted average common shares outstanding	158,465			162,797		159,339			162,603
	Basic EPS attributable to Fluor Corporation:
	Earnings from continuing operations	$	1.03		$	0.99	$	1.96		$	2.02
	Loss from discontinued operations, net of taxes	(0.54		)	—		(0.54		)	—
	Net earnings	$	0.49		$	0.99	$	1.42		$	2.02
	Diluted EPS:
	Weighted average common shares outstanding	158,465			162,797		159,339			162,603
	Diluted effect:
	Employee stock options, restricted stock units and shares and Value Driver Incentive units	1,555			972		1,632			1,082
	Conversion equivalent of dilutive convertible debt	434			366		436			379
	Weighted average diluted shares outstanding	160,454			164,135		161,407			164,064
	Diluted EPS attributable to Fluor Corporation:
	Earnings from continuing operations	$	1.02		$	0.98	$	1.93		$	2
	Loss from discontinued operations, net of taxes	(0.54		)	—		(0.52		)	—
	Net earnings	$	0.48		$	0.98	$	1.41		$	2
	Anti-dilutive securities not included above	680			2,516		560			1,949

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2014
Fair Value of Financial Instruments	'
Schedule of assets and liabilities measured at fair value on a recurring basis	'
		June 30, 2014												December 31, 2013
		Fair Value Hierarchy												Fair Value Hierarchy
	(in thousands)	Total			Level 1			Level 2			Level 3			Total		Level 1		Level 2		Level 3
	Assets:
	Cash and cash equivalents(1)	$	23,109		$	23,109		$	—		$	—		$	50,081	$	50,081	$	—	$	—
	Marketable securities, current(2)	82,721			—			82,721			—			111,333		—		111,333
	Deferred compensation trusts(3)	89,403			89,403			—			—			87,507		87,507		—		—
	Marketable securities, noncurrent(4)	333,035			—			333,035			—			275,402		—		275,402		—
	Derivative assets(5)
	Commodity contracts	306			—			306			—			438		—		438		—
	Foreign currency contracts	1,958			—			1,958			—			855		—		855		—
	Liabilities:
	Derivative liabilities(5)
	Commodity contracts	$	6		$	—		$	6		$	—		$	3	$	—	$	3	$	—
	Foreign currency contracts	773			—			773			—			967		—		967		—
	(1)     Consists primarily of registered money market funds valued at fair value. These investments represent the net asset value of the shares of such funds as of the close of business at the end of the period.
	(2)     Consists of investments in U.S. agency securities, U.S. Treasury securities, corporate debt securities, commercial paper and other debt securities with maturities of less than one year that are valued based on pricing models, which are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets.
	(3)     Consists primarily of registered money market funds and an equity index fund valued at fair value. These investments, which are trading securities, represent the net asset value of the shares of such funds as of the close of business at the end of the period based on the last trade or official close of an active market or exchange.
	(4)   Consists of investments in U.S. agency securities, U.S. Treasury securities, corporate debt securities and other debt securities with maturities ranging from one year to three years that are valued based on pricing models, which are determined from a compilation of primarily observable market information, broker quotes in non-active markets or similar assets.
	(5)   See Note 9 for the classification of commodity contracts and foreign currency contracts in the Condensed Consolidated Balance Sheet. Commodity contracts and foreign currency contracts are estimated using standard pricing models with market-based inputs, which take into account the present value of estimated future cash flows.
Schedule of carrying values and estimated fair values of financial instruments not required to be measured at fair value in the Condensed Consolidated Balance Sheet	'
				June 30, 2014						December 31, 2013
		Fair Value		Carrying			Fair			Carrying			Fair
	(in thousands)	Hierarchy		Value			Value			Value			Value
	Assets:
	Cash(1)	Level 1		$	1,465,274		$	1,465,274		$	1,444,656		$	1,444,656
	Cash equivalents(2)	Level 2		694,426			694,426			788,845			788,845
	Marketable securities, current(3)	Level 2		76,981			76,981			74,690			74,690
	Notes receivable, including noncurrent portion(4)	Level 3		21,611			21,611			27,602			27,602
	Liabilities:
	3.375% Senior Notes(5)	Level 2		$	496,825		$	511,188		$	496,604		$	484,204
	1.5% Convertible Senior Notes(5)	Level 2		18,325			53,234			18,398			54,027
	Other borrowings(6)	Level 2		10,892			10,892			11,441			11,441
	(1)   Cash consists of bank deposits. Carrying amounts approximate fair value.
	(2)     Cash equivalents consist of held-to-maturity time deposits with maturities of three months or less at the date of purchase. The carrying amounts of these time deposits approximate fair value because of the short-term maturity of these instruments.
	(3)     Marketable securities, current consist of held-to-maturity time deposits with original maturities greater than three months that will mature within one year. The carrying amounts of these time deposits approximate fair value because of the short-term maturity of these instruments. Amortized cost is not materially different from the fair value.
	(4)   Notes receivable are carried at net realizable value which approximates fair value. Factors considered by the company in determining the fair value include the credit worthiness of the borrower, current interest rates, the term of the note and any collateral pledged as security. Notes receivable are periodically assessed for impairment.
	(5)   The fair value of the 3.375% Senior Notes and 1.5% Convertible Senior Notes are estimated based on quoted market prices for similar issues.
	(6)   Other borrowings represent amounts outstanding under a short-term credit facility. The carrying amount of borrowings under this credit facility approximates fair value because of the short-term maturity.

Derivatives_and_Hedging_Tables

Derivatives and Hedging (Tables)	6 Months Ended
	Jun. 30, 2014
Derivatives and Hedging	'
Schedule of fair values of derivatives designated as hedging instruments under ASC 815	'
		Asset Derivatives								Liability Derivatives
		Balance Sheet		June 30,			December 31,			Balance Sheet		June 30,			December 31,
	(in thousands)	Location		2014			2013			Location		2014			2013
	Commodity contracts	Other current assets		$	75		$	296		Other accrued liabilities		$	6		$	3
	Foreign currency contracts	Other current assets		1,859			855			Other accrued liabilities		585			967
	Commodity contracts	Other assets		231			142			Noncurrent liabilities		—			—
	Foreign currency contracts	Other assets		99			—			Noncurrent liabilities		188			—
	Total			$	2,264		$	1,293				$	779		$	970
Schedule of after-tax amount of gain (loss) recognized in OCI and reclassified from AOCI into earnings associated with derivative instruments designated as cash flow hedges	'
		Three Months Ended						Six Months Ended
		June 30,						June 30,
	Cash Flow Hedges (in thousands)	2014			2013			2014			2013
	Commodity contracts	$	92		$	1		$	(51	)	$	32
	Foreign currency contracts	724			(2,526		)	323			(2,472		)
	Total	$	816		$	(2,525	)	$	272		$	(2,440	)
				Three Months Ended						Six Months Ended
				June 30,						June 30,
	Cash Flow Hedges (in thousands)	Location of Gain (Loss)		2014			2013			2014			2013
	Commodity contracts	Total cost of revenue		$	(8	)	$	13		$	70		$	60
	Foreign currency contracts	Total cost of revenue		282			(282		)	290			(135		)
	Interest rate contracts	Interest expense		(262		)	(262		)	(525		)	(524		)
	Total			$	12		$	(531	)	$	(165	)	$	(599	)
Hedging instruments designated as fair value hedges	'
Derivative gain (loss)	'
Schedule of pre-tax net gains recognized in earnings	'
				Three Months Ended						Six Months Ended
				June 30,						June 30,
	Fair Value Hedges (in thousands)	Location of Gain		2014			2013			2014			2013
	Foreign currency contracts	Corporate general and administrative expense		$	2,092		$	326		$	3,351		$	4,145

Retirement_Benefits_Tables

Retirement Benefits (Tables) (Defined Benefit Pension Plans)	6 Months Ended
	Jun. 30, 2014
Defined Benefit Pension Plans	'
Defined Benefit Plans and Other Postretirement Benefit Plans	'
Schedule of net periodic pension expense for U.S and non-U.S. defined benefit pension plans	'
		U.S. Pension Plan												Non-U.S. Pension Plans
		Three Months Ended						Six Months Ended						Three Months Ended						Six Months Ended
		June 30,						June 30,						June 30,						June 30,
	(in thousands)	2014			2013			2014			2013			2014			2013			2014			2013
	Service cost	$	950		$	1,614		$	1,900		$	3,227		$	4,176		$	3,814		$	8,329		$	7,696
	Interest cost	7,918			7,275			15,837			14,550			8,881			7,919			17,685			15,936
	Expected return on assets	(7,526		)	(7,744		)	(15,052		)	(15,488		)	(12,361		)	(11,421		)	(24,609		)	(22,980		)
	Amortization of prior service cost	188			25			375			51			—			—			—			—
	Recognized net actuarial loss	1,108			1,510			2,217			3,020			1,996			1,675			3,980			3,375
	Net periodic pension expense	$	2,638		$	2,680		$	5,277		$	5,360		$	2,692		$	1,987		$	5,385		$	4,027

Financing_Arrangements_Tables

Financing Arrangements (Tables)	6 Months Ended
	Jun. 30, 2014
Financing Arrangements	'
Schedule of liability and equity components of the 2004 Notes	'
		June 30,		December 31,
	(in thousands)	2014		2013
	Carrying value of the equity component	$	19,516	$	19,519
	Principal amount and carrying value of the liability component	18,325		18,398

Operating_Information_by_Segme1

Operating Information by Segment (Tables)	6 Months Ended
	Jun. 30, 2014
Operating Information by Segment	'
Schedule of External Revenue, Segment Profit and Total Assets by Segment	'
		Three Months Ended						Six Months Ended
		June 30,						June 30,
	External Revenue (in millions)	2014			2013			2014			2013
	Oil & Gas	$	2,817.50		$	2,856.50		$	5,547.20		$	5,625.80
	Industrial & Infrastructure	1,486.50			3,082.30			3,154.60			6,214.50
	Government	598.6			674.5			1,191.80			1,425.80
	Global Services	145.1			154.4			287.8			304.3
	Power	204			422.6			454.9			805.6
	Total external revenue	$	5,251.70		$	7,190.30		$	10,636.30		$	14,376.00
		Three Months Ended						Six Months Ended
		June 30,						June 30,
	Segment Profit (in millions)	2014			2013			2014			2013
	Oil & Gas	$	167.4		$	106.8		$	305.3		$	211.3
	Industrial & Infrastructure	97.1			129.4			197.4			256.3
	Government	13.9			13.6			26.4			54.9
	Global Services	19.8			27.6			38.6			55.3
	Power	14.9			10.6			13.5			3.8
	Total segment profit	$	313.1		$	288		$	581.2		$	581.6
		June 30,			December 31,
	Total Assets by Segment (in millions)	2014			2013
	Oil & Gas	$	1,795.70		$	1,643.80
	Industrial & Infrastructure	896.4			909.7
	Government	512.1			580.6
	Global Services	822.4			758.9
	Power	128.8			154.9
Schedule of Reconciliation of Total Segment Profit to Earnings from Continuing Operations Before Taxes	'
		Three Months Ended						Six Months Ended
	Reconciliation of Total Segment Profit to Earnings from	June 30,						June 30,
	Continuing Operations Before Taxes (in millions)	2014			2013			2014			2013
	Total segment profit	$	313.1		$	288		$	581.2		$	581.6
	Corporate general and administrative expense	(56.7		)	(31.9		)	(94.5		)	(64.5		)
	Interest income (expense), net	(3.3		)	(2.2		)	(6.4		)	(5.2		)
	Earnings attributable to noncontrolling interests	32.2			44.8			76.4			93.1
	Earnings from continuing operations before taxes	$	285.3		$	298.7		$	556.7		$	605

Discontinued_Operations_Detail

Discontinued Operations (Details) (St. Joe and Doe Run, USD $)	3 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014
St. Joe and Doe Run	'
Discontinued Operations	'
Loss from discontinued operations in connection with reassessment of estimated loss contingencies, net of taxes	$85
Loss from discontinued operations in connection with reassessment of estimated loss contingencies, taxes	$47

Other_Comprehensive_Income_Los2

Other Comprehensive Income (Loss) (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other comprehensive income (loss), Before-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Before-Tax Amount	$44,745	($60,335)	$27,963	($73,056)
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Before-Tax Amount	365	560	-3,974	53
Other comprehensive income (loss) attributable to Fluor Corporation, Before-Tax Amount	44,380	-60,895	31,937	-73,109
Other comprehensive income (loss), Tax Benefit (Expense):	'	'	'	'
Total other comprehensive income (loss), Tax Benefit (Expense)	-16,290	23,543	-13,034	28,286
Other comprehensive income (loss) attributable to Fluor Corporation, Tax Benefit (Expense)	-16,290	23,543	-13,034	28,286
Other comprehensive income (loss), Net-of-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Net-of-Tax Amount	28,455	-36,792	14,929	-44,770
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Net-of-Tax Amount	365	560	-3,974	53
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	28,090	-37,352	18,903	-44,823
Foreign currency translation adjustment	'	'	'	'
Other comprehensive income (loss), Before-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Before-Tax Amount	21,359	-66,421	3,559	-90,827
Other comprehensive income (loss), Tax Benefit (Expense):	'	'	'	'
Total other comprehensive income (loss), Tax Benefit (Expense)	-7,921	25,118	-2,850	34,080
Other comprehensive income (loss), Net-of-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Net-of-Tax Amount	13,438	-41,303	709	-56,747
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Net-of-Tax Amount	236	560	-4,042	54
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	13,202	-41,863	4,751	-56,801
Ownership share of equity method investees' other comprehensive income	'	'	'	'
Other comprehensive income (loss), Before-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Before-Tax Amount	19,176	8,272	18,232	8,353
Other comprehensive income (loss), Tax Benefit (Expense):	'	'	'	'
Total other comprehensive income (loss), Tax Benefit (Expense)	-6,833	-2,395	-7,887	-2,262
Other comprehensive income (loss), Net-of-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Net-of-Tax Amount	12,343	5,877	10,345	6,091
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	12,343	5,877	10,345	6,091
Defined benefit pension and postretirement plan adjustments	'	'	'	'
Other comprehensive income (loss), Before-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Before-Tax Amount	2,415	2,535	5,051	14,120
Other comprehensive income (loss), Tax Benefit (Expense):	'	'	'	'
Total other comprehensive income (loss), Tax Benefit (Expense)	-906	-951	-1,894	-5,295
Other comprehensive income (loss), Net-of-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Net-of-Tax Amount	1,509	1,584	3,157	8,825
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	1,509	1,584	3,157	8,825
Unrealized gain (loss) on derivative contracts	'	'	'	'
Other comprehensive income (loss), Before-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Before-Tax Amount	1,426	-3,191	781	-2,947
Other comprehensive income (loss), Tax Benefit (Expense):	'	'	'	'
Total other comprehensive income (loss), Tax Benefit (Expense)	-492	1,197	-276	1,105
Other comprehensive income (loss), Net-of-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Net-of-Tax Amount	934	-1,994	505	-1,842
Less: Other comprehensive income (loss) attributable to noncontrolling interests, Net-of-Tax Amount	129	'	68	-1
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	805	-1,994	437	-1,841
Unrealized gain (loss) on debt securities	'	'	'	'
Other comprehensive income (loss), Before-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Before-Tax Amount	369	-1,530	340	-1,755
Other comprehensive income (loss), Tax Benefit (Expense):	'	'	'	'
Total other comprehensive income (loss), Tax Benefit (Expense)	-138	574	-127	658
Other comprehensive income (loss), Net-of-Tax Amount:	'	'	'	'
Total other comprehensive income (loss), Net-of-Tax Amount	231	-956	213	-1,097
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	$231	($956)	$213	($1,097)

Other_Comprehensive_Income_Los3

Other Comprehensive Income (Loss) (Details 2) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Changes in accumulated other comprehensive income ("AOCI") balances by component	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance as of beginning of period	($307,388)	($265,321)	($298,201)	($257,850)
Other comprehensive income (loss) before reclassifications	26,042	-39,829	14,620	-49,366
Amounts reclassified from AOCI	2,048	2,477	4,283	4,543
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	28,090	-37,352	18,903	-44,823
Accumulated Other Comprehensive Income (Loss), Net, balance as of end of period	-279,298	-302,673	-279,298	-302,673
Foreign Currency Translation	'	'	'	'
Changes in accumulated other comprehensive income ("AOCI") balances by component	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance as of beginning of period	-8,615	30,961	-164	45,899
Other comprehensive income (loss) before reclassifications	13,202	-41,863	4,751	-56,801
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	13,202	-41,863	4,751	-56,801
Accumulated Other Comprehensive Income (Loss), Net, balance as of end of period	4,587	-10,902	4,587	-10,902
Ownership Share of Equity Method Investees' Other Comprehensive Income (Loss)	'	'	'	'
Changes in accumulated other comprehensive income ("AOCI") balances by component	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance as of beginning of period	-34,272	-42,805	-32,274	-43,019
Other comprehensive income (loss) before reclassifications	12,343	5,877	10,345	6,091
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	12,343	5,877	10,345	6,091
Accumulated Other Comprehensive Income (Loss), Net, balance as of end of period	-21,929	-36,928	-21,929	-36,928
Defined Benefit Pension and Postretirement Plans	'	'	'	'
Changes in accumulated other comprehensive income ("AOCI") balances by component	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance as of beginning of period	-256,649	-245,483	-258,297	-252,724
Other comprehensive income (loss) before reclassifications	-548	-423	-951	4,796
Amounts reclassified from AOCI	2,057	2,007	4,108	4,029
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	1,509	1,584	3,157	8,825
Accumulated Other Comprehensive Income (Loss), Net, balance as of end of period	-255,140	-243,899	-255,140	-243,899
Unrealized Gain (Loss) on Derivative Contracts	'	'	'	'
Changes in accumulated other comprehensive income ("AOCI") balances by component	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance as of beginning of period	-8,010	-8,807	-7,642	-8,960
Other comprehensive income (loss) before reclassifications	817	-2,525	273	-2,440
Amounts reclassified from AOCI	-12	531	164	599
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	805	-1,994	437	-1,841
Accumulated Other Comprehensive Income (Loss), Net, balance as of end of period	-7,205	-10,801	-7,205	-10,801
Unrealized Gain (Loss) on Available-for-Sale Securities	'	'	'	'
Changes in accumulated other comprehensive income ("AOCI") balances by component	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance as of beginning of period	158	813	176	954
Other comprehensive income (loss) before reclassifications	228	-895	202	-1,012
Amounts reclassified from AOCI	3	-61	11	-85
Other comprehensive income (loss) attributable to Fluor Corporation, Net-of-Tax Amount	231	-956	213	-1,097
Accumulated Other Comprehensive Income (Loss), Net, balance as of end of period	$389	($143)	$389	($143)

Other_Comprehensive_Income_Los4

Other Comprehensive Income (Loss) (Details 3) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of beginning of year	$3,613	$8,217	$7,952	$8,724
Other comprehensive income (loss) before reclassifications attributable to noncontrolling interests	359	560	-3,983	54
Amount reclassified from AOCI attributable to noncontrolling interests	6	'	9	-1
Net other comprehensive income (loss) attributable to noncontrolling interests	365	560	-3,974	53
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of end of year	3,978	8,777	3,978	8,777
Foreign Currency Translation	'	'	'	'
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of beginning of year	3,607	8,217	7,885	8,723
Other comprehensive income (loss) before reclassifications attributable to noncontrolling interests	236	560	-4,042	54
Net other comprehensive income (loss) attributable to noncontrolling interests	236	560	-4,042	54
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of end of year	3,843	8,777	3,843	8,777
Unrealized Gain (Loss) on Derivative Contracts	'	'	'	'
Changes in AOCI balances by component (after-tax) attributable to Noncontrolling Interest	'	'	'	'
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of beginning of year	6	'	67	1
Other comprehensive income (loss) before reclassifications attributable to noncontrolling interests	123	'	59	'
Amount reclassified from AOCI attributable to noncontrolling interests	6	'	9	-1
Net other comprehensive income (loss) attributable to noncontrolling interests	129	'	68	-1
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of end of year	$135	'	$135	'

Other_Comprehensive_Income_Los5

Other Comprehensive Income (Loss) (Details 4) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Reclassifications out of accumulated other comprehensive income (loss)	'	'	'	'
Total cost of revenue	($4,906,352)	($6,857,472)	($9,978,656)	($13,701,222)
Interest expense	-7,445	-6,448	-14,342	-13,403
Corporate general and administrative expense	-56,711	-31,918	-94,484	-64,520
Income tax benefit (expense)	-90,126	-91,366	-168,284	-184,443
NET EARNINGS	109,980	207,340	303,290	420,596
Net earnings attributable to noncontrolling interests	32,190	45,928	76,426	92,726
Net of tax and noncontrolling interest	77,790	161,412	226,864	327,870
Defined Benefit Pension and Postretirement Plans | Reclassified out of AOCI	'	'	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'	'	'
Various accounts, primarily cost of revenue and corporate general and administrative expense	-3,291	-3,210	-6,572	-6,446
Income tax benefit (expense)	1,234	1,203	2,464	2,417
NET EARNINGS	-2,057	-2,007	-4,108	-4,029
Unrealized Gain (Loss) on Derivative Contracts | Reclassified out of AOCI	'	'	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'	'	'
Income tax benefit (expense)	6	326	117	366
NET EARNINGS	6	-531	-173	-598
Net earnings attributable to noncontrolling interests	-6	'	-9	1
Net of tax and noncontrolling interest	12	-531	-164	-599
Unrealized Gain (Loss) on Derivative Contracts | Reclassified out of AOCI | Commodity contracts and foreign currency contracts	'	'	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'	'	'
Total cost of revenue	420	-437	549	-125
Unrealized Gain (Loss) on Derivative Contracts | Reclassified out of AOCI | Interest rate contracts	'	'	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'	'	'
Interest expense	-420	-420	-839	-839
Unrealized Gain (Loss) on Available-for-Sale Securities | Reclassified out of AOCI	'	'	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'	'	'
Corporate general and administrative expense	-4	98	-17	136
Income tax benefit (expense)	1	-37	6	-51
NET EARNINGS	($3)	$61	($11)	$85

Income_Taxes_Details

Income Taxes (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Income Taxes	'	'	'	'
Effective tax rate, continuing operations (as a percent)	31.60%	30.60%	30.20%	30.50%
Effective tax rate, discontinued operations (as a percent)	35.70%	'	35.70%	'

Cash_Paid_for_Interest_and_Tax1

Cash Paid for Interest and Taxes (Details) (USD $)	6 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Cash paid during the year	'	'
Cash paid for interest	$12	$11
Income tax payments, net of refunds	$142	$108

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Amounts attributable to Fluor Corporation:	'	'	'	'
Earnings from continuing operations	$162,973,000	$161,412,000	$312,047,000	$327,870,000
Loss from discontinued operations, net of taxes	-85,183,000	'	-85,183,000	'
Net earnings (in dollars)	77,790,000	161,412,000	226,864,000	327,870,000
Basic EPS:	'	'	'	'
Weighted average common shares outstanding (in shares)	158,465,000	162,797,000	159,339,000	162,603,000
Basic EPS attributable to Fluor Corporation:	'	'	'	'
Earnings from continuing operations (in dollars per share)	$1.03	$0.99	$1.96	$2.02
Loss from discontinued operations, net of taxes (in dollars per share)	($0.54)	'	($0.54)	'
Net earnings (in dollars per share)	$0.49	$0.99	$1.42	$2.02
Diluted EPS:	'	'	'	'
Weighted average common shares outstanding (in shares)	158,465,000	162,797,000	159,339,000	162,603,000
Diluted effect:	'	'	'	'
Employee stock options, restricted stock units and shares and Value Driver Incentive units (in shares)	1,555,000	972,000	1,632,000	1,082,000
Conversion equivalent of dilutive convertible debt (in shares)	434,000	366,000	436,000	379,000
Weighted average diluted shares outstanding (in shares)	160,454,000	164,135,000	161,407,000	164,064,000
Diluted EPS attributable to Fluor Corporation:	'	'	'	'
Earnings from continuing operations (in dollars per share)	$1.02	$0.98	$1.93	$2
Loss from discontinued operations, net of taxes (in dollars per share)	($0.54)	'	($0.52)	'
Net earnings (in dollars per share)	$0.48	$0.98	$1.41	$2
Anti-dilutive securities not included above (in shares)	680,000	2,516,000	560,000	1,949,000
Common stock repurchased and cancelled, shares (in shares)	1,750,885	'	4,212,685	'
Common stock repurchased and cancelled, amount (in dollars)	$132,000,000	'	$324,000,000	'

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Deferred compensation trusts	$401,564,000	'	$401,564,000	'	$388,408,000
Other-than-temporary impairment of available-for-sale securities	'	'	0	'	'
Proceeds from the sales and maturities of available-for-sale securities	53,000,000	131,000,000	117,000,000	206,000,000	'
Minimum	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Debt securities maturity period	'	'	'1 year	'	'
Maximum	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Debt securities maturity period	'	'	'3 years	'	'
Fair Value, Measurements, Recurring | Money market funds	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Available-for-sale securities	23,000,000	'	23,000,000	'	50,000,000
Fair Value, Measurements, Recurring | U.S. agency securities	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Available-for-sale securities	87,000,000	'	87,000,000	'	119,000,000
Fair Value, Measurements, Recurring | U.S. Treasury securities	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Available-for-sale securities	86,000,000	'	86,000,000	'	26,000,000
Fair Value, Measurements, Recurring | Corporate debt securities	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Available-for-sale securities	237,000,000	'	237,000,000	'	235,000,000
Fair Value, Measurements, Recurring | Commercial paper	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Available-for-sale securities	6,000,000	'	6,000,000	'	7,000,000
Fair Value, Measurements, Recurring | Total	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Cash and cash equivalents	23,109,000	'	23,109,000	'	50,081,000
Marketable securities, current	82,721,000	'	82,721,000	'	111,333,000
Deferred compensation trusts	89,403,000	'	89,403,000	'	87,507,000
Marketable securities, noncurrent	333,035,000	'	333,035,000	'	275,402,000
Fair Value, Measurements, Recurring | Total | Commodity contracts	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Derivative assets	306,000	'	306,000	'	438,000
Derivative liabilities	6,000	'	6,000	'	3,000
Fair Value, Measurements, Recurring | Total | Foreign currency contracts	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Derivative assets	1,958,000	'	1,958,000	'	855,000
Derivative liabilities	773,000	'	773,000	'	967,000
Fair Value, Measurements, Recurring | Level 1	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Cash and cash equivalents	23,109,000	'	23,109,000	'	50,081,000
Deferred compensation trusts	89,403,000	'	89,403,000	'	87,507,000
Fair Value, Measurements, Recurring | Level 2	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Marketable securities, current	82,721,000	'	82,721,000	'	111,333,000
Marketable securities, noncurrent	333,035,000	'	333,035,000	'	275,402,000
Fair Value, Measurements, Recurring | Level 2 | Commodity contracts	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Derivative assets	306,000	'	306,000	'	438,000
Derivative liabilities	6,000	'	6,000	'	3,000
Fair Value, Measurements, Recurring | Level 2 | Foreign currency contracts	'	'	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'	'	'
Derivative assets	1,958,000	'	1,958,000	'	855,000
Derivative liabilities	$773,000	'	$773,000	'	$967,000

Fair_Value_of_Financial_Instru3

Fair Value of Financial Instruments (Details 2) (USD $)

Jun. 30, 2014

Sep. 30, 2011

Jun. 30, 2014

Feb. 29, 2004

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

In Thousands, unless otherwise specified

3.375% Senior Notes

3.375% Senior Notes

1.5% Convertible Senior Notes

1.5% Convertible Senior Notes

Carrying Value

Carrying Value

Carrying Value

Carrying Value

Carrying Value

Carrying Value

Carrying Value

Carrying Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Fair Value

Other borrowings

Other borrowings

3.375% Senior Notes

3.375% Senior Notes

1.5% Convertible Senior Notes

1.5% Convertible Senior Notes

Level 1

Level 1

Level 2

Level 2

Level 2

Level 2

Level 2

Level 2

Level 2

Level 2

Level 3

Level 3

Other borrowings

Other borrowings

3.375% Senior Notes

3.375% Senior Notes

1.5% Convertible Senior Notes

1.5% Convertible Senior Notes

Estimated fair values of the company's financial instruments that are not measured at fair value on a recurring basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cash

'

'

'

'

$1,465,274

$1,444,656

'

'

'

'

'

'

$1,465,274

$1,444,656

'

'

'

'

'

'

'

'

'

'

Cash equivalents

'

'

'

'

694,426

788,845

'

'

'

'

'

'

'

'

694,426

788,845

'

'

'

'

'

'

'

'

Marketable securities, current

'

'

'

'

76,981

74,690

'

'

'

'

'

'

'

'

76,981

74,690

'

'

'

'

'

'

'

'

Notes receivable, including noncurrent portion

'

'

'

'

21,611

27,602

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21,611

27,602

Debt

'

'

'

'

'

'

$10,892

$11,441

$496,825

$496,604

$18,325

$18,398

'

'

'

'

$10,892

$11,441

$511,188

$484,204

$53,234

$54,027

'

'

Debt instrument interest rate (as a percent)

3.38%

3.38%

1.50%

1.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivatives_and_Hedging_Detail

Derivatives and Hedging (Details) (USD $)

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Commodity contracts

Commodity contracts

Foreign currency contracts

Foreign currency contracts

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Designated as Hedging Instrument

Maximum

Maximum

Commodity contracts

Commodity contracts

Commodity contracts

Commodity contracts

Commodity contracts

Commodity contracts

Foreign currency contracts

Foreign currency contracts

Foreign currency contracts

Foreign currency contracts

Foreign currency contracts

Foreign currency contracts

Other current assets

Other current assets

Other assets

Other assets

Other accrued liabilities

Other accrued liabilities

Other current assets

Other current assets

Other assets

Other accrued liabilities

Other accrued liabilities

Noncurrent liabilities

Derivatives, Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total gross notional amount

$7,000,000

'

$165,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative contract maturity

'

31-May-17

'

30-Jun-16

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset Derivatives

'

'

'

'

2,264,000

1,293,000

75,000

296,000

231,000

142,000

'

'

1,859,000

855,000

99,000

'

'

'

Liability Derivatives

'

'

'

'

$779,000

$970,000

'

'

'

'

$6,000

$3,000

'

'

'

$585,000

$967,000

$188,000

Derivatives_and_Hedging_Detail1

Derivatives and Hedging (Details 2) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Derivative Instruments, Gain (Loss)	'	'	'	'
After-tax amount of gain (loss) recognized in OCI	$816	($2,525)	$272	($2,440)
After-tax amount of gain (loss) reclassified from AOCI into earnings	12	-531	-165	-599
Commodity contracts	'	'	'	'
Derivative Instruments, Gain (Loss)	'	'	'	'
After-tax amount of gain (loss) recognized in OCI	92	1	-51	32
Commodity contracts | Total cost of revenue	'	'	'	'
Derivative Instruments, Gain (Loss)	'	'	'	'
After-tax amount of gain (loss) reclassified from AOCI into earnings	-8	13	70	60
Foreign currency contracts	'	'	'	'
Derivative Instruments, Gain (Loss)	'	'	'	'
After-tax amount of gain (loss) recognized in OCI	724	-2,526	323	-2,472
Foreign currency contracts | Corporate general and administrative expense	'	'	'	'
Derivative Instruments, Gain (Loss)	'	'	'	'
Net Gains Recognized in Earnings	2,092	326	3,351	4,145
Foreign currency contracts | Total cost of revenue	'	'	'	'
Derivative Instruments, Gain (Loss)	'	'	'	'
After-tax amount of gain (loss) reclassified from AOCI into earnings	282	-282	290	-135
Interest rate contracts | Interest expense	'	'	'	'
Derivative Instruments, Gain (Loss)	'	'	'	'
After-tax amount of gain (loss) reclassified from AOCI into earnings	($262)	($262)	($525)	($524)

Retirement_Benefits_Details

Retirement Benefits (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Defined Benefit Pension Plans	'	'	'	'
Components of net periodic pension expense	'	'	'	'
Company contributions	'	'	$12,000,000	'
Defined Benefit Pension Plans | Minimum	'	'	'	'
Components of net periodic pension expense	'	'	'	'
Expected future benefit payments	'	'	30,000,000	'
Defined Benefit Pension Plans | Maximum	'	'	'	'
Components of net periodic pension expense	'	'	'	'
Expected future benefit payments	'	'	60,000,000	'
Defined Benefit U.S. Pension Plans	'	'	'	'
Components of net periodic pension expense	'	'	'	'
Service cost	950,000	1,614,000	1,900,000	3,227,000
Interest cost	7,918,000	7,275,000	15,837,000	14,550,000
Expected return on assets	-7,526,000	-7,744,000	-15,052,000	-15,488,000
Amortization of prior service cost	188,000	25,000	375,000	51,000
Recognized net actuarial loss	1,108,000	1,510,000	2,217,000	3,020,000
Net periodic pension expense	2,638,000	2,680,000	5,277,000	5,360,000
Defined Benefit Non-U.S. Pension Plans	'	'	'	'
Components of net periodic pension expense	'	'	'	'
Service cost	4,176,000	3,814,000	8,329,000	7,696,000
Interest cost	8,881,000	7,919,000	17,685,000	15,936,000
Expected return on assets	-12,361,000	-11,421,000	-24,609,000	-22,980,000
Recognized net actuarial loss	1,996,000	1,675,000	3,980,000	3,375,000
Net periodic pension expense	$2,692,000	$1,987,000	$5,385,000	$4,027,000

Financing_Arrangements_Details

Financing Arrangements (Details) (USD $)

1 Months Ended

6 Months Ended

1 Months Ended

6 Months Ended

1 Months Ended

Sep. 30, 2011

Jun. 30, 2014

Jun. 30, 2014

Feb. 29, 2004

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

31-May-14

31-May-14

31-May-14

1-May-14

Nov. 09, 2012

31-May-14

Nov. 09, 2012

3.375% Senior Notes due September 15, 2021

3.375% Senior Notes due September 15, 2021

3.375% Senior Notes due September 15, 2021

1.5% Convertible Senior Notes due February 15, 2024

1.5% Convertible Senior Notes due February 15, 2024

1.5% Convertible Senior Notes due February 15, 2024

1.5% Convertible Senior Notes due February 15, 2024

1.5% Convertible Senior Notes due February 15, 2024

Credit Facility due 2019

Credit Facility due 2019

Credit Facility due 2019

2010 Performance Letter of Credit Facility

November 2012 credit facility, as amended

November 2012 credit facility, as amended

November 2012 credit facility, as amended

Change of control triggering event

Maximum

Maximum

Maximum

Maximum

Maximum

Maximum

Subsidiaries

Subsidiaries

Subsidiaries

Financing Arrangements

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maximum borrowing capacity

'

'

'

'

'

'

'

'

$1,700,000,000

'

'

$1,200,000,000

$1,800,000,000

'

'

Maximum borrowing capacity additional amount, subject to certain conditions

'

'

'

'

'

'

'

'

500,000,000

'

'

'

'

'

'

Ratio of consolidated debt to tangible net worth

'

'

'

'

'

'

'

'

'

100.00%

'

'

'

'

'

Aggregate amount of debt

'

'

'

'

'

'

'

'

'

'

750,000,000

'

'

750,000,000

600,000,000

Issue price of notes

500,000,000

'

'

330,000,000

'

'

'

'

'

'

'

'

'

'

'

Debt instrument interest rate (as a percent)

3.38%

3.38%

'

1.50%

1.50%

'

'

'

'

'

'

'

'

'

'

Proceeds from notes

492,000,000

'

'

323,000,000

'

'

'

'

'

'

'

'

'

'

'

Redemption price as a percentage of principal

'

100.00%

101.00%

'

'

'

'

'

'

'

'

'

'

'

'

Debt conversion, amount of original debt

'

'

'

'

'

'

$100,000

$100,000

'

'

'

'

'

'

'

Debt conversions (in shares)

'

'

'

'

1,727

61

'

'

'

'

'

'

'

'

'

Financing_Arrangements_Details1

Financing Arrangements (Details 2) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Feb. 29, 2004	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
				Other borrowings	Other borrowings	1.5% Convertible Senior Notes due February 15, 2024	1.5% Convertible Senior Notes due February 15, 2024	1.5% Convertible Senior Notes due February 15, 2024	1.5% Convertible Senior Notes due February 15, 2024	1.5% Convertible Senior Notes due February 15, 2024	1.5% Convertible Senior Notes due February 15, 2024
								Maximum	Maximum	Maximum	Maximum
Financing Arrangements	'	'	'	'	'	'	'	'	'	'	'
Carrying value of the equity component	'	'	'	'	'	$19,516,000	$19,519,000	'	'	'	'
Principal amount and carrying value of the liability component	29,217,000	29,839,000	'	'	'	18,325,000	18,398,000	'	'	'	'
Common stock, par value (in dollars per share)	$0.01	$0.01	$0.01	'	'	'	'	'	'	'	'
Conversion rate per $1,000 principal amount of Notes (in shares)	'	'	'	'	'	36.6729	'	'	'	'	'
Debt instrument, coupon interest	'	'	'	'	'	'	'	100,000	100,000	100,000	100,000
If-converted value	'	'	'	'	'	52,000,000	'	'	'	'	'
Amount outstanding under credit facilities	'	'	'	$11,000,000	$11,000,000	'	'	'	'	'	'

StockBased_Plans_Details

Stock-Based Plans (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013
Restricted stock units and restricted shares | Executives and directors	'	'
Stock Plans	'	'
Share-based compensation arrangement by share-based payment award, restricted stock units and restricted shares (in shares)	370,014	468,695
Share-based compensation arrangement by share-based payment award, restricted stock units and restricted shares, weighted-average per share price (in dollars per share)	$79.06	$61.30
Restricted stock units | Executives	'	'
Stock Plans	'	'
Share-based compensation arrangement by share-based payment award, award vesting period	'3 years	'3 years
Restricted shares | Executives	'	'
Stock Plans	'	'
Share-based compensation arrangement by share-based payment award, award vesting period	'3 years	'3 years
Stock Options | Executives	'	'
Stock Plans	'	'
Share-based compensation arrangement by share-based payment award, options awarded (in shares)	684,486	884,574
Share-based compensation arrangement by share-based payment award, options awarded weighted average exercise price (in dollars per share)	$79.19	$61.45
Share-based compensation arrangement by share-based payment award, award vesting period	'3 years	'3 years
Share-based compensation arrangement by share-based payment award, award expiration period	'10 years	'10 years
Performance-based VDI units | Executives	'	'
Stock Plans	'	'
Share-based compensation arrangement by share-based payment award, restricted stock units and restricted shares (in shares)	315,551	385,742
Share-based compensation arrangement by share-based payment award, restricted stock units and restricted shares, weighted-average per share price (in dollars per share)	$79.19	$61.45
Share-based compensation arrangement by share-based payment award, award vesting period	'3 years	'3 years

Noncontrolling_Interests_Detai

Noncontrolling Interests (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Noncontrolling Interests	'	'	'	'
Net earnings attributable to noncontrolling interests	$32,190	$45,928	$76,426	$92,726
Distributions paid to noncontrolling interest holders	'	'	44,284	45,809
Capital contribution from noncontrolling interests	'	'	$190	$1,462

Contingencies_and_Commitments_

Contingencies and Commitments (Details) (USD $)	1 Months Ended	3 Months Ended	1 Months Ended
In Millions, unless otherwise specified	Nov. 30, 2006	Jun. 30, 2014	Jul. 31, 2011	Jun. 30, 2014	Jun. 30, 2014
	Conex International v. Fluor Enterprises, Inc.	St. Joe and Doe Run	St. Joe and Doe Run	St. Joe and Doe Run	St. Joe and Doe Run
			St. Joe and Doe Run December 2010 litigation	St. Joe and Doe Run December 2010 litigation, December 2011 judgment, appeal and opinion	St. Joe and Doe Run additional litigation matters
			plaintiff		lawsuit
Litigation and dispute resolution	'	'	'	'	'
Number of plaintiffs	'	'	16	'	'
Compensatory and economic damages	'	'	$38.50	$38.50	'
Punitive damages reversed and remanded back to trial court	'	'	'	240	'
Punitive damages	'	'	320	80	'
Loss from discontinued operations in connection with reassessment of estimated loss contingencies, net of taxes	'	85	'	'	'
Loss from discontinued operations in connection with reassessment of estimated loss contingencies, taxes	'	47	'	'	'
Number of lawsuits	'	'	'	'	19
Damages awarded, subsequently appealed and reverse	$99	'	'	'	'

Contingencies_and_Commitments_1

Contingencies and Commitments (Details 2) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Recognized claims against clients	'	'
Contracts receivable, claims and uncertain amounts	$26	$0

Guarantees_Details

Guarantees (Details) (Performance Guarantee, USD $)	Jun. 30, 2014
In Billions, unless otherwise specified
Performance Guarantee	'
Guarantees	'
Estimated performance guarantees outstanding	$14.10

Variable_Interest_Entities_Det

Variable Interest Entities (Details) (USD $)

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Partnership

Joint ventures

Unconsolidated variable interest entities

Unconsolidated variable interest entities

Unconsolidated variable interest entities

Consolidated variable interest entities

Consolidated variable interest entities

Primary beneficiary

Primary beneficiary

Primary beneficiary

Primary beneficiary

Majority

Majority

Future funding commitment

Fluor SKM joint venture

Fluor SKM joint venture

Fluor SKM joint venture

Fluor SKM joint venture

Variable interest entity information

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Entity's interest in joint venture (as a percent)

'

'

'

'

50.00%

50.00%

'

'

'

'

'

'

'

'

'

Carrying value of the unconsolidated VIEs

'

'

'

'

'

'

$96,000,000

$122,000,000

'

'

'

'

'

'

'

Future funding amount

'

'

'

'

'

'

'

'

20,000,000

'

'

'

'

'

'

Revenue

5,251,664,000

7,190,328,000

10,636,300,000

14,375,952,000

'

'

'

'

'

'

'

102,000,000

538,000,000

267,000,000

1,300,000,000

Carrying value of assets

'

'

'

'

'

'

'

'

'

1,200,000,000

1,200,000,000

'

'

'

'

Carrying value of liabilities

'

'

'

'

'

'

'

'

'

$675,000,000

$731,000,000

'

'

'

'

Operating_Information_by_Segme2

Operating Information by Segment (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Operating information by reportable segment	'	'	'	'
Total external revenue	$5,251,664,000	$7,190,328,000	$10,636,300,000	$14,375,952,000
Oil and Gas Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total external revenue	2,817,500,000	2,856,500,000	5,547,200,000	5,625,800,000
Industrial and Infrastructure Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total external revenue	1,486,500,000	3,082,300,000	3,154,600,000	6,214,500,000
Government Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total external revenue	598,600,000	674,500,000	1,191,800,000	1,425,800,000
Global Services Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total external revenue	145,100,000	154,400,000	287,800,000	304,300,000
Power Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total external revenue	204,000,000	422,600,000	454,900,000	805,600,000
Intercompany | Global Services Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total external revenue	139,000,000	126,000,000	275,000,000	243,000,000
Reportable segments	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total segment profit (loss)	313,100,000	288,000,000	581,200,000	581,600,000
Reportable segments | Oil and Gas Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total segment profit (loss)	167,400,000	106,800,000	305,300,000	211,300,000
Reportable segments | Industrial and Infrastructure Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total segment profit (loss)	97,100,000	129,400,000	197,400,000	256,300,000
Reportable segments | Government Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total segment profit (loss)	13,900,000	13,600,000	26,400,000	54,900,000
Reportable segments | Global Services Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total segment profit (loss)	19,800,000	27,600,000	38,600,000	55,300,000
Reportable segments | Power Segment	'	'	'	'
Operating information by reportable segment	'	'	'	'
Total segment profit (loss)	14,900,000	10,600,000	13,500,000	3,800,000
Reportable segments | Power Segment | NuScale	'	'	'	'
Operating information by reportable segment	'	'	'	'
Research and development expense	4,000,000	13,000,000	17,000,000	28,000,000
Reportable segments | Power Segment | NuScale | Cost-sharing agreement, research and development activities | U.S. Department of Energy	'	'	'	'
Operating information by reportable segment	'	'	'	'
Accrued reimbursement of certain qualified expenditures	$17,000,000	'	$17,000,000	'

Operating_Information_by_Segme3

Operating Information by Segment (Details 2) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Reconciliation of total segment profit to earnings from continuing operations before taxes	'	'	'	'
Corporate general and administrative expense	($56,711,000)	($31,918,000)	($94,484,000)	($64,520,000)
Interest income (expense), net	-3,300,000	-2,200,000	-6,400,000	-5,200,000
EARNINGS FROM CONTINUING OPERATIONS BEFORE TAXES	285,289,000	298,706,000	556,757,000	605,039,000
Reportable segments	'	'	'	'
Reconciliation of total segment profit to earnings from continuing operations before taxes	'	'	'	'
Total segment profit	313,100,000	288,000,000	581,200,000	581,600,000
Reconciling item | Attributable to Noncontrolling Interest:	'	'	'	'
Reconciliation of total segment profit to earnings from continuing operations before taxes	'	'	'	'
EARNINGS FROM CONTINUING OPERATIONS BEFORE TAXES	$32,200,000	$44,800,000	$76,400,000	$93,100,000

Operating_Information_by_Segme4

Operating Information by Segment (Details 3) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	$8,398,951	$8,323,850
Reportable segments | Oil and Gas Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	1,795,700	1,643,800
Reportable segments | Industrial and Infrastructure Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	896,400	909,700
Reportable segments | Government Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	512,100	580,600
Reportable segments | Global Services Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	822,400	758,900
Reportable segments | Power Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	$128,800	$154,900