Fluor (FLR) 10-Q 1 May 14 2014 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2014	Apr. 25, 2014
Document and Entity Information	'	'
Entity Registrant Name	'FLUOR CORP	'
Entity Central Index Key	'0001124198	'
Document Type	'10-Q	'
Document Period End Date	31-Mar-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	'	159,141,916
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q1	'

CONDENSED_CONSOLIDATED_STATEME

CONDENSED CONSOLIDATED STATEMENT OF EARNINGS (USD $)	3 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
CONDENSED CONSOLIDATED STATEMENT OF EARNINGS	'	'
TOTAL REVENUE	$5,384,636	$7,185,624
TOTAL COST OF REVENUE	5,072,304	6,843,750
OTHER (INCOME) AND EXPENSES	'	'
Corporate general and administrative expense	37,773	32,602
Interest expense	6,897	6,955
Interest income	-3,806	-4,016
Total cost and expenses	5,113,168	6,879,291
EARNINGS BEFORE TAXES	271,468	306,333
INCOME TAX EXPENSE	78,158	93,077
NET EARNINGS	193,310	213,256
LESS: NET EARNINGS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	44,236	46,798
NET EARNINGS ATTRIBUTABLE TO FLUOR CORPORATION	$149,074	$166,458
BASIC EARNINGS PER SHARE (in dollars per share)	$0.93	$1.02
DILUTED EARNINGS PER SHARE (in dollars per share)	$0.92	$1.02
SHARES USED TO CALCULATE EARNINGS PER SHARE	'	'
BASIC (in shares)	160,213	162,408
DILUTED (in shares)	162,360	163,991
DIVIDENDS DECLARED PER SHARE (in dollars per share)	$0.21	$0.16

CONDENSED_CONSOLIDATED_STATEME1

CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME	'	'
NET EARNINGS	$193,310	$213,256
OTHER COMPREHENSIVE INCOME (LOSS), NET OF TAX:	'	'
Foreign currency translation adjustment	-12,729	-15,444
Ownership share of equity method investees' other comprehensive income (loss)	-1,998	214
Defined benefit pension and postretirement plan adjustments	1,648	7,241
Unrealized gain (loss) on derivative contracts	-429	152
Unrealized loss on debt securities	-18	-141
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX	-13,526	-7,978
COMPREHENSIVE INCOME	179,784	205,278
LESS: COMPREHENSIVE INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	39,897	46,291
COMPREHENSIVE INCOME ATTRIBUTABLE TO FLUOR CORPORATION	$139,887	$158,987

CONDENSED_CONSOLIDATED_BALANCE

CONDENSED CONSOLIDATED BALANCE SHEET (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
CURRENT ASSETS	'	'
Cash and cash equivalents ($473,589 and $488,426 related to variable interest entities ("VIEs"))	$2,142,058	$2,283,582
Marketable securities, current ($64,104 and $64,084 related to VIEs)	183,509	186,023
Accounts and notes receivable, net ($151,230 and $220,705 related to VIEs)	1,122,629	1,274,024
Contract work in progress ($258,114 and $238,895 related to VIEs)	1,647,190	1,740,821
Deferred taxes	238,763	245,796
Other current assets	280,602	273,437
Total current assets	5,614,751	6,003,683
Marketable securities, noncurrent	322,922	275,402
Property, plant and equipment ("PP&E") ((net of accumulated depreciation of $1,124,559 and $1,106,925) (net PP&E of $76,421 and $87,774 related to VIEs))	960,064	966,953
Investments and goodwill	335,094	312,293
Deferred taxes	126,457	139,773
Deferred compensation trusts	390,354	388,408
Other	242,295	237,338
TOTAL ASSETS	7,991,937	8,323,850
CURRENT LIABILITIES	'	'
Trade accounts payable ($249,191 and $311,892 related to VIEs)	1,523,735	1,641,109
Convertible senior notes and other borrowings	29,393	29,839
Advance billings on contracts ($282,691 and $327,820 related to VIEs)	660,777	743,524
Accrued salaries, wages and benefits ($60,175 and $64,064 related to VIEs)	664,432	753,452
Other accrued liabilities ($26,338 and $25,517 related to VIEs)	266,426	239,236
Total current liabilities	3,144,763	3,407,160
LONG-TERM DEBT DUE AFTER ONE YEAR	496,715	496,604
NONCURRENT LIABILITIES	516,025	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 - 159,303,927 and 161,287,818 shares in 2014 and 2013, respectively	1,593	1,613
Additional paid-in capital	'	12,911
Accumulated other comprehensive loss	-307,388	-298,201
Retained earnings	3,996,524	4,040,664
Total shareholders' equity	3,690,729	3,756,987
Noncontrolling interests	143,705	123,836
Total equity	3,834,434	3,880,823
TOTAL LIABILITIES AND EQUITY	$7,991,937	$8,323,850

CONDENSED_CONSOLIDATED_BALANCE1

CONDENSED CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
CONDENSED CONSOLIDATED BALANCE SHEET	'	'
Property, plant and equipment, accumulated depreciation	$1,124,559	$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)	159,303,927	161,287,818
Common stock, outstanding shares (in shares)	159,303,927	161,287,818
CURRENT ASSETS, VIEs	'	'
Cash and cash equivalents	2,142,058	2,283,582
Marketable securities, current	183,509	186,023
Accounts and notes receivable	1,122,629	1,274,024
Contract work in progress	1,647,190	1,740,821
Property, plant and equipment, net	960,064	966,953
CURRENT LIABILITIES, VIEs	'	'
Trade accounts payable	1,523,735	1,641,109
Advance billings on contracts related	660,777	743,524
Accrued salaries, wages and benefits	664,432	753,452
Other accrued liabilities	266,426	239,236
Consolidated variable interest entities	'	'
CURRENT ASSETS, VIEs	'	'
Cash and cash equivalents	473,589	488,426
Marketable securities, current	64,104	64,084
Accounts and notes receivable	151,230	220,705
Contract work in progress	258,114	238,895
Property, plant and equipment, net	76,421	87,774
CURRENT LIABILITIES, VIEs	'	'
Trade accounts payable	249,191	311,892
Advance billings on contracts related	282,691	327,820
Accrued salaries, wages and benefits	60,175	64,064
Other accrued liabilities	$26,338	$25,517

CONDENSED_CONSOLIDATED_STATEME2

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
CASH FLOWS FROM OPERATING ACTIVITIES	'	'
Net earnings	$193,310	$213,256
Adjustments to reconcile net earnings to cash provided (utilized) by operating activities:	'	'
Depreciation of fixed assets	48,492	54,626
Amortization of intangibles	223	313
Losses (earnings) from equity method investments, net of distributions	2,784	-1,207
Restricted stock and stock option amortization	10,792	9,638
Deferred compensation trust	-1,946	-15,688
Deferred compensation obligation	4,649	18,093
Deferred taxes	23,605	17,424
Excess tax benefit from stock-based plans	-3,115	-2,747
Retirement plan contributions, net of accruals	-7,306	-4,394
Changes in operating assets and liabilities	-76,456	-314,466
Other items	-8,318	3,428
Cash provided (utilized) by operating activities	186,714	-21,724
CASH FLOWS FROM INVESTING ACTIVITIES	'	'
Purchases of marketable securities	-134,264	-132,700
Proceeds from the sales and maturities of marketable securities	88,643	107,632
Capital expenditures	-66,628	-56,906
Proceeds from disposal of property, plant and equipment	24,557	15,702
Investments in partnerships and joint ventures	-4,978	-7,414
Consolidation of a variable interest entity	'	24,675
Acquisitions	'	-7,674
Other items	-1,070	4,346
Cash utilized by investing activities	-93,740	-52,339
CASH FLOWS FROM FINANCING ACTIVITIES	'	'
Repurchase of common stock	-192,301	'
Dividends paid	-25,966	'
Distributions paid to noncontrolling interests	-15,898	-17,942
Capital contributions by noncontrolling interests	46	202
Taxes paid on vested restricted stock	-9,979	-10,357
Stock options exercised	14,070	5,807
Excess tax benefit from stock-based plans	3,115	2,747
Other items	1,896	2,800
Cash utilized by financing activities	-225,017	-43,104
Effect of exchange rate changes on cash	-9,481	-22,574
Decrease in cash and cash equivalents	-141,524	-139,741
Cash and cash equivalents at beginning of period	2,283,582	2,154,541
Cash and cash equivalents at end of period	2,142,058	2,014,800
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	'	($8,566)

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	3 Months Ended
	Mar. 31, 2014
Principles of Consolidation	'
Principles of Consolidation	'
	(1)                  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 months ended March 31, 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 March 31, 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	3 Months Ended
	Mar. 31, 2014
Recent Accounting Pronouncements	'
Recent Accounting Pronouncements	'
	(2)                   New accounting pronouncements implemented by the company in the first quarter of 2014 or requiring implementation in future periods are discussed below or elsewhere in the notes, where appropriate.
	In the first quarter of 2014, the company adopted Accounting Standards Update (“ASU”) 2014-06, “Technical Corrections and Improvements Related to Glossary Terms.” This ASU is limited to amendments to the Master Glossary of the Accounting Standards Codification (“ASC”), including technical corrections related to glossary links, glossary term deletions, glossary term name changes and limited-scope improvements to reduce duplicate Master Glossary terms. The adoption of ASU 2014-06 did not have any impact on the company’s financial position, results of operations or cash flows.
	In January 2014, the Financial Accounting Standards Board 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 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 2013-07, “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 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 2013-05, “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 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 2013-04, “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 a material impact on the company’s financial position, results of operations or cash flows.

Comprehensive_Income

Comprehensive Income	3 Months Ended
	Mar. 31, 2014
Comprehensive Income	'
Comprehensive Income	'
	(3)                  The tax effects of the components of other comprehensive income (loss) (“OCI”) are as follows:
		Three Months Ended									Three Months Ended
		March 31, 2014									March 31, 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	$	(17,800	)	$	5,071		$	(12,729	)	$	(24,406	)	$	8,962		$	(15,444	)
	Ownership share of equity method investees’ other comprehensive income (loss)	(944		)	(1,054		)	(1,998		)	81			133			214
	Defined benefit pension and postretirement plan adjustments	2,636			(988		)	1,648			11,585			(4,344		)	7,241
	Unrealized gain (loss) on derivative contracts	(645		)	216			(429		)	244			(92		)	152
	Unrealized loss on debt securities	(29		)	11			(18		)	(225		)	84			(141		)
	Total other comprehensive loss	(16,782		)	3,256			(13,526		)	(12,721		)	4,743			(7,978		)
	Less: Other comprehensive loss attributable to noncontrolling interests	(4,339		)	—			(4,339		)	(507		)	—			(507		)
	Other comprehensive loss attributable to Fluor Corporation	$	(12,443	)	$	3,256		$	(9,187	)	$	(12,214	)	$	4,743		$	(7,471	)
	The changes in accumulated other comprehensive income (“AOCI”) balances by component (after-tax) for the three months ended March 31, 2014 are as follows:
	(in thousands)	Foreign			Ownership Share			Defined Benefit			Unrealized			Unrealized			Accumulated
		Currency			of Equity Method			Pension and			Gain (Loss)			Gain (Loss)			Other
		Translation			Investees’ Other			Postretirement			on			on Available-			Comprehensive
					Comprehensive			Plans			Derivative			for-Sale			Income (Loss),
					Income (Loss)						Contracts			Securities			Net
	Attributable to Fluor Corporation:
	Balance as of December 31, 2013	$	(164	)	$	(32,274	)	$	(258,297	)	$	(7,642	)	$	176		$	(298,201	)
	Other comprehensive loss before reclassifications	(8,451		)	(1,998		)	(403		)	(544		)	(26		)	(11,422		)
	Amounts reclassified from AOCI	—			—			2,051			176			8			2,235
	Net other comprehensive income (loss)	(8,451		)	(1,998		)	1,648			(368		)	(18		)	(9,187		)
	Balance as of March 31, 2014	$	(8,615	)	$	(34,272	)	$	(256,649	)	$	(8,010	)	$	158		$	(307,388	)
	Attributable to Noncontrolling Interests:
	Balance as of December 31, 2013	$	7,885		$	—		$	—		$	67		$	—		$	7,952
	Other comprehensive loss before reclassifications	(4,278		)	—			—			(64		)	—			(4,342		)
	Amounts reclassified from AOCI	—			—			—			3			—			3
	Net other comprehensive loss	(4,278		)	—			—			(61		)	—			(4,339		)
	Balance as of March 31, 2014	$	3,607		$	—		$	—		$	6		$	—		$	3,613
	The changes in AOCI balances by component (after-tax) for the three months ended March 31, 2013 are as follows:
	(in thousands)	Foreign			Ownership Share			Defined Benefit			Unrealized			Unrealized			Accumulated
		Currency			of Equity Method			Pension and			Gain (Loss)			Gain (Loss)			Other
		Translation			Investees’ Other			Postretirement			on			on Available-			Comprehensive
					Comprehensive			Plans			Derivative			for-Sale			Income (Loss),
					Income (Loss)						Contracts			Securities			Net
	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	(14,938		)	214			5,219			85			(117		)	(9,537		)
	Amounts reclassified from AOCI	—			—			2,022			68			(24		)	2,066
	Net other comprehensive income (loss)	(14,938		)	214			7,241			153			(141		)	(7,471		)
	Balance as of March 31, 2013	$	30,961		$	(42,805	)	$	(245,483	)	$	(8,807	)	$	813		$	(265,321	)
	Attributable to Noncontrolling Interests:
	Balance as of December 31, 2012	$	8,723		$	—		$	—		$	1		$	—		$	8,724
	Other comprehensive loss before reclassifications	(506		)	—			—			—			—			(506		)
	Amounts reclassified from AOCI	—			—			—			(1		)	—			(1		)
	Net other comprehensive loss	(506		)	—			—			(1		)	—			(507		)
	Balance as of March 31, 2013	$	8,217		$	—		$	—		$	—		$	—		$	8,217
	The significant items reclassified out of AOCI and the corresponding location in and impact on the Condensed Consolidated Statement of Earnings are as follows:
				Three Months Ended
		Location in Condensed		March 31,
	(in thousands)	Consolidated Statement of Earnings		2014			2013
	Component of AOCI:
	Defined benefit pension plan adjustments	Various accounts(1)		$	(3,281	)	$	(3,236	)
	Income tax benefit	Income tax expense		1,230			1,214
	Net of tax			$	(2,051	)	$	(2,022	)
	Unrealized gain (loss) on derivative contracts:
	Commodity contracts and foreign currency contracts	Total cost of revenue		$	129		$	312
	Interest rate contracts	Interest expense		(419		)	(419		)
	Income tax benefit	Income tax expense		111			40
Net of tax			(179		)	(67		)
Less: Noncontrolling interests	Net earnings attributable to noncontrolling interests		(3		)	1
Net of tax and noncontrolling interests			$	(176	)	$	(68	)
Unrealized gain (loss) on available-for-sale securities	Corporate general and administrative expense		$	(13	)	$	38
Income tax benefit (expense)	Income tax expense		5			(14		)
Net of tax			$	(8	)	$	24
(1)           Defined benefit pension plan adjustments were reclassified primarily to total cost of revenue and corporate general and administrative expense.

Income_Taxes

Income Taxes	3 Months Ended
	Mar. 31, 2014
Income Taxes	'
Income Taxes	'
	(4)                   The effective tax rate for the three months ended March 31, 2014 and 2013, was 28.8 percent and 30.4 percent, respectively. The lower effective tax rate for the three months ended March 31, 2014 compared to the first quarter of 2013 was primarily due to the recognition of a deferred tax benefit for foreign taxes previously paid on certain unremitted foreign earnings. The first quarter of 2013 benefited from federal research tax credits that are no longer available. Both periods benefited from earnings attributable to noncontrolling interests for which income taxes are not typically the responsibility of the company.
	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 2003.

Consolidated_Statement_of_Cash

Consolidated Statement of Cash Flows	3 Months Ended
	Mar. 31, 2014
Consolidated Statement of Cash Flows.	'
Consolidated Statement of Cash Flows	'
	(5)                  Cash paid for interest was $9.9 million and $10.1 million for the three months ended March 31, 2014 and 2013, respectively. Income tax payments, net of refunds, were $37.2 million and $56.0 million during the three-month periods ended March 31, 2014 and 2013, respectively.

Earnings_Per_Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2014
Earnings Per Share	'
Earnings Per Share	'
	(6)                   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 months ended March 31, 2014 and 2013 are presented below:
		Three Months Ended
		March 31,
	(in thousands, except per share amounts)	2014		2013
	Net earnings attributable to Fluor Corporation	$	149,074	$	166,458
	Basic EPS:
	Weighted average common shares outstanding	160,213		162,408
	Basic earnings per share	$	0.93	$	1.02
	Diluted EPS:
	Weighted average common shares outstanding	160,213		162,408
	Diluted effect:
	Employee stock options, restricted stock units and shares and Value Driver Incentive units	1,709		1,191
	Conversion equivalent of dilutive convertible debt	438		392
	Weighted average diluted shares outstanding	162,360		163,991
	Diluted earnings per share	$	0.92	$	1.02
	Anti-dilutive securities not included above	440		1,382
	In the first quarter of 2014, the company repurchased and cancelled 2,461,800 shares of its common stock under its stock repurchase program for $192 million.

Fair_Value_of_Financial_Instru

Fair Value of Financial Instruments	3 Months Ended
	Mar. 31, 2014
Fair Value of Financial Instruments	'
Fair Value of Financial Instruments	'
	(7)                  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 March 31, 2014 and December 31, 2013:
		March 31, 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)	$	13,270		$	13,270		$	—		$	—		$	50,081	$	50,081	$	—	$	—
	Marketable securities, current(2)	101,189			—			101,189			—			111,333		—		111,333
	Deferred compensation trusts(3)	87,528			87,528			—			—			87,507		87,507		—		—
	Marketable securities, noncurrent(4)	322,922			—			322,922			—			275,402		—		275,402		—
	Derivative assets(5)
	Commodity contracts	108			—			108			—			438		—		438		—
	Foreign currency contracts	1,587			—			1,587			—			855		—		855		—
	Liabilities:
	Derivative liabilities(5)
	Commodity contracts	$	97		$	—		$	97		$	—		$	3	$	—	$	3	$	—
	Foreign currency contracts	557			—			557			—			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 8 for the classification of commodity contracts and foreign currency contracts on 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 March 31, 2014: money market funds of $13 million, U.S. agency securities of $103 million, U.S. Treasury securities of $75 million, corporate debt securities of $234 million, commercial paper of $9 million and other debt securities of $3 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 $228 million, commercial paper of $7 million and other debt securities of $7 million. The amortized cost of these available-for-sale securities is not materially different from the fair value. During the three months ended March 31, 2014 and 2013, proceeds from the sales and maturities of available-for-sale securities were $64 million and $75 million, respectively.
	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:
				March 31, 2014						December 31, 2013
		Fair Value		Carrying			Fair			Carrying			Fair
	(in thousands)	Hierarchy		Value			Value			Value			Value
	Assets:
	Cash(1)	Level 1		$	1,344,868		$	1,344,868		$	1,444,656		$	1,444,656
	Cash equivalents(2)	Level 2		783,920			783,920			788,845			788,845
	Marketable securities, current(3)	Level 2		82,320			82,320			74,690			74,690
	Notes receivable, including noncurrent portion(4)	Level 3		16,874			16,874			27,602			27,602
	Liabilities:
	3.375% Senior Notes(5)	Level 2		$	496,715		$	502,705		$	496,604		$	484,204
	1.5% Convertible Senior Notes(5)	Level 2		18,398			53,930			18,398			54,027
	Other borrowings(6)	Level 2		10,995			10,995			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	3 Months Ended
	Mar. 31, 2014
Derivatives and Hedging	'
Derivatives and Hedging	'
	(8)                  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 March 31, 2014, the company had total gross notional amounts of $147 million of foreign currency contracts and $8 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 December 2014. 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 months ended March 31, 2014 and 2013.
	The fair values of derivatives designated as hedging instruments under ASC 815 as of March 31, 2014 and December 31, 2013 were as follows:
		Asset Derivatives							Liability Derivatives
		Balance Sheet		March 31,			December 31,		Balance Sheet		March 31,			December 31,
	(in thousands)	Location		2014			2013		Location		2014			2013
	Commodity contracts	Other current assets		$	3		$	296	Other accrued liabilities		$	89		$	3
	Foreign currency contracts	Other current assets		1,587			855		Other accrued liabilities		557			967
	Commodity contracts	Other assets		105			142		Noncurrent liabilities		8			—
	Total			$	1,695		$	1,293			$	654		$	970
	The pre-tax net gains recognized in earnings associated with the hedging instruments designated as fair value hedges for the three months ended March 31, 2014 and 2013 were as follows:
				Three Months Ended
				March 31,
	Fair Value Hedges (in thousands)	Location of Gain		2014			2013
	Foreign currency contracts	Corporate general and administrative expense		$	1,259		$	3,819
	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 on the Condensed Consolidated Statement of Earnings.
	The after-tax amount of gain (loss) recognized in OCI and reclassified from AOCI into earnings associated with the derivative instruments designated as cash flow hedges for the three months ended March 31, 2014 and 2013 was as follows:
		After-Tax Amount of Gain							After-Tax Amount of Gain
		(Loss) Recognized in OCI							(Loss) Reclassified from
									AOCI into Earnings
		Three Months Ended							Three Months Ended
		March31,							March31,
	Cash Flow Hedges (in thousands)	2014			2013			Location of Gain (Loss)	2014			2013
	Commodity contracts	$	(143	)	$	31		Total cost of revenue	$	78		$	47
	Foreign currency contracts	(401		)	54			Total cost of revenue	8			147
	Interest rate contracts	—			—			Interest expense	(262		)	(262		)
	Total	$	(544	)	$	85			$	(176	)	$	(68	)

Retirement_Benefits

Retirement Benefits	3 Months Ended
	Mar. 31, 2014
Retirement Benefits	'
Retirement Benefits	'
	(9)                  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						Three Months Ended
		March 31,						March 31,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	950		$	1,613		$	4,153		$	3,882
	Interest cost	7,919			7,275			8,804			8,017
	Expected return on assets	(7,526		)	(7,744		)	(12,248		)	(11,559		)
	Amortization of prior service cost	187			26			—			—
	Recognized net actuarial loss	1,109			1,510			1,984			1,700
	Net periodic pension expense	$	2,639		$	2,680		$	2,693		$	2,040
	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 three months ended March 31, 2014, contributions of approximately $10 million were made by the company.

Financing_Arrangements

Financing Arrangements	3 Months Ended
	Mar. 31, 2014
Financing Arrangements	'
Financing Arrangements	'
	(10)           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 first quarter of 2014 and the 2004 Notes were therefore classified as short-term debt as of December 31, 2013 and March 31, 2014, respectively.
	The following table presents information related to the liability and equity components of the 2004 Notes:
		March 31,		December 31,
	(in thousands)	2014		2013
	Carrying value of the equity component	$	19,519	$	19,519
	Principal amount and carrying value of the liability component	18,398		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 first quarter of both 2014 and 2013 included original coupon interest of $0.1 million. The if-converted value of $52 million was in excess of the principal value as of March 31, 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 March 31, 2014 and December 31, 2013.
	As of March 31, 2014, the company was in compliance with all of the financial covenants related to its debt agreements.

StockBased_Plans

Stock-Based Plans	3 Months Ended
	Mar. 31, 2014
Stock-Based Plans	'
Stock-Based Plans	'
	(11)           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. Restricted stock units of 357,138 and 453,185 were granted to executives in the first quarter of 2014 and 2013, respectively, at weighted-average per share prices of $79.19 and $61.43, respectively. For the company’s executives, the restricted units and shares granted in 2014 and 2013 generally vest ratably over three years. During the first quarter 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 quarter 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	3 Months Ended
	Mar. 31, 2014
Noncontrolling Interests	'
Noncontrolling Interests	'
	(12)           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 months ended March 31, 2014 and 2013, net earnings attributable to noncontrolling interests were $44 million and $47 million, respectively. Income taxes associated with earnings attributable to noncontrolling interests were immaterial in both periods presented. Distributions paid to noncontrolling interests were $16 million and $18 million for the three months ended March 31, 2014 and 2013, respectively. Capital contributions by noncontrolling interests were less than $0.1 million and $0.2 million for the three months ended March 31, 2014 and 2013, respectively.

Contingencies_and_Commitments

Contingencies and Commitments	3 Months Ended
	Mar. 31, 2014
Contingencies and Commitments	'
Contingencies and Commitments	'
	(13)           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 March 31, 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. Briefings and oral arguments before the Missouri Court of Appeals (Eastern District) have been completed, and the company is awaiting a decision. The company strongly believes that the judgments are not supported by the facts or the law and that it is probable that such judgments will be overturned. Therefore, based upon the present status of this matter, the company does not believe it is probable that a loss will be incurred. Accordingly, the company has not recorded a charge as a result of the judgments. The company has also taken steps to enforce its rights to the indemnification described above.
	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. While management believes the company will be ultimately successful in these various matters, if the company was unsuccessful in its appeal of the ruling referenced above or in any of the other lawsuits, or in the prosecution of and collection on our indemnity claims, the company could recognize a material charge to its earnings.
	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 back 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 $23 million as of March 31, 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	3 Months Ended
	Mar. 31, 2014
Guarantees	'
Guarantees	'
	(14)           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 $13.6 billion as of March 31, 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 March 31, 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 generally require the borrower to pledge collateral to support the fulfillment of the borrower’s obligation.

Variable_Interest_Entities

Variable Interest Entities	3 Months Ended
	Mar. 31, 2014
Variable Interest Entities	'
Variable Interest Entities	'
	(15)           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 $117 million and $122 million as of March 31, 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 March 31, 2014 for the unconsolidated VIEs were $33 million.
	In some cases, the company is required to consolidate certain VIEs. As of March 31, 2014, the carrying values of the assets and liabilities associated with the operations of the consolidated VIEs were $1.1 billion and $620 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 $165 million and $753 million for the three months ended March 31, 2014 and 2013, respectively.

Operations_by_Business_Segment

Operations by Business Segment and Geographical Area	3 Months Ended
	Mar. 31, 2014
Operations by Business Segment and Geographical Area	'
Operations by Business Segment and Geographical Area	'
	(16)        Operating information by reportable segment is as follows:
		Three Months Ended
		March 31,
	External Revenue (in millions)	2014			2013
	Oil & Gas	$	2,729.70		$	2,769.30
	Industrial & Infrastructure	1,668.10			3,132.20
	Government	593.2			751.2
	Global Services	142.7			149.9
	Power	250.9			383
	Total external revenue	$	5,384.60		$	7,185.60
	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 $136 million and $117 million for the three months ended March 31, 2014 and 2013, respectively.
		Three Months Ended
		March 31,
	Segment Profit (Loss) (in millions)	2014			2013
	Oil & Gas	$	137.9		$	104.5
	Industrial & Infrastructure	100.3			126.9
	Government	12.5			41.3
	Global Services	18.8			27.7
	Power	(1.4		)	(6.8		)
	Total segment profit	$	268.1		$	293.6
	Power segment profit for the three months ended March 31, 2014 and 2013 included research and development expenses of $13 million and $15 million, respectively, associated with the operations of NuScale.
	A reconciliation of total segment profit to earnings before taxes is as follows:
		Three Months Ended
		March 31,
	Reconciliation of Total Segment Profit to Earnings Before Taxes (in millions)	2014			2013
	Total segment profit	$	268.1		$	293.6
	Corporate general and administrative expense	(37.8		)	(32.6		)
	Interest income (expense), net	(3.0		)	(2.9		)
	Earnings attributable to noncontrolling interests	44.2			48.2
	Earnings before taxes	$	271.5		$	306.3
	Total assets by segment are as follows:
		March 31,			December 31,
	Total Assets by Segment (in millions)	2014			2013
	Oil & Gas	$	1,546.40		$	1,643.80
	Industrial & Infrastructure	842.4			909.7
	Government	521.7			580.6
	Global Services	781			758.9
	Power	141.8			154.9

Comprehensive_Income_Tables

Comprehensive Income (Tables)	3 Months Ended
	Mar. 31, 2014
Comprehensive Income	'
Schedule of tax effects of components of other comprehensive income (loss) ("OCI")	'
		Three Months Ended									Three Months Ended
		March 31, 2014									March 31, 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	$	(17,800	)	$	5,071		$	(12,729	)	$	(24,406	)	$	8,962		$	(15,444	)
	Ownership share of equity method investees’ other comprehensive income (loss)	(944		)	(1,054		)	(1,998		)	81			133			214
	Defined benefit pension and postretirement plan adjustments	2,636			(988		)	1,648			11,585			(4,344		)	7,241
	Unrealized gain (loss) on derivative contracts	(645		)	216			(429		)	244			(92		)	152
	Unrealized loss on debt securities	(29		)	11			(18		)	(225		)	84			(141		)
	Total other comprehensive loss	(16,782		)	3,256			(13,526		)	(12,721		)	4,743			(7,978		)
	Less: Other comprehensive loss attributable to noncontrolling interests	(4,339		)	—			(4,339		)	(507		)	—			(507		)
	Other comprehensive loss attributable to Fluor Corporation	$	(12,443	)	$	3,256		$	(9,187	)	$	(12,214	)	$	4,743		$	(7,471	)
Schedule of changes in accumulated other comprehensive income ("AOCI") balances by component (after-tax)	'
	The changes in accumulated other comprehensive income (“AOCI”) balances by component (after-tax) for the three months ended March 31, 2014 are as follows:
	(in thousands)	Foreign			Ownership Share			Defined Benefit			Unrealized			Unrealized			Accumulated
		Currency			of Equity Method			Pension and			Gain (Loss)			Gain (Loss)			Other
		Translation			Investees’ Other			Postretirement			on			on Available-			Comprehensive
					Comprehensive			Plans			Derivative			for-Sale			Income (Loss),
					Income (Loss)						Contracts			Securities			Net
	Attributable to Fluor Corporation:
	Balance as of December 31, 2013	$	(164	)	$	(32,274	)	$	(258,297	)	$	(7,642	)	$	176		$	(298,201	)
	Other comprehensive loss before reclassifications	(8,451		)	(1,998		)	(403		)	(544		)	(26		)	(11,422		)
	Amounts reclassified from AOCI	—			—			2,051			176			8			2,235
	Net other comprehensive income (loss)	(8,451		)	(1,998		)	1,648			(368		)	(18		)	(9,187		)
	Balance as of March 31, 2014	$	(8,615	)	$	(34,272	)	$	(256,649	)	$	(8,010	)	$	158		$	(307,388	)
	Attributable to Noncontrolling Interests:
	Balance as of December 31, 2013	$	7,885		$	—		$	—		$	67		$	—		$	7,952
	Other comprehensive loss before reclassifications	(4,278		)	—			—			(64		)	—			(4,342		)
	Amounts reclassified from AOCI	—			—			—			3			—			3
	Net other comprehensive loss	(4,278		)	—			—			(61		)	—			(4,339		)
	Balance as of March 31, 2014	$	3,607		$	—		$	—		$	6		$	—		$	3,613
	The changes in AOCI balances by component (after-tax) for the three months ended March 31, 2013 are as follows:
	(in thousands)	Foreign			Ownership Share			Defined Benefit			Unrealized			Unrealized			Accumulated
		Currency			of Equity Method			Pension and			Gain (Loss)			Gain (Loss)			Other
		Translation			Investees’ Other			Postretirement			on			on Available-			Comprehensive
					Comprehensive			Plans			Derivative			for-Sale			Income (Loss),
					Income (Loss)						Contracts			Securities			Net
	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	(14,938		)	214			5,219			85			(117		)	(9,537		)
	Amounts reclassified from AOCI	—			—			2,022			68			(24		)	2,066
	Net other comprehensive income (loss)	(14,938		)	214			7,241			153			(141		)	(7,471		)
	Balance as of March 31, 2013	$	30,961		$	(42,805	)	$	(245,483	)	$	(8,807	)	$	813		$	(265,321	)
	Attributable to Noncontrolling Interests:
	Balance as of December 31, 2012	$	8,723		$	—		$	—		$	1		$	—		$	8,724
	Other comprehensive loss before reclassifications	(506		)	—			—			—			—			(506		)
	Amounts reclassified from AOCI	—			—			—			(1		)	—			(1		)
	Net other comprehensive loss	(506		)	—			—			(1		)	—			(507		)
	Balance as of March 31, 2013	$	8,217		$	—		$	—		$	—		$	—		$	8,217
Schedule of significant items reclassified out of AOCI and corresponding location in and impact on Condensed Consolidated Statement of Earnings	'
				Three Months Ended
		Location in Condensed		March 31,
	(in thousands)	Consolidated Statement of Earnings		2014			2013
	Component of AOCI:
	Defined benefit pension plan adjustments	Various accounts(1)		$	(3,281	)	$	(3,236	)
	Income tax benefit	Income tax expense		1,230			1,214
	Net of tax			$	(2,051	)	$	(2,022	)
	Unrealized gain (loss) on derivative contracts:
	Commodity contracts and foreign currency contracts	Total cost of revenue		$	129		$	312
	Interest rate contracts	Interest expense		(419		)	(419		)
	Income tax benefit	Income tax expense		111			40
	Net of tax			(179		)	(67		)
	Less: Noncontrolling interests	Net earnings attributable to noncontrolling interests		(3		)	1
	Net of tax and noncontrolling interests			$	(176	)	$	(68	)
	Unrealized gain (loss) on available-for-sale securities	Corporate general and administrative expense		$	(13	)	$	38
	Income tax benefit (expense)	Income tax expense		5			(14		)
	Net of tax			$	(8	)	$	24
	(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)	3 Months Ended
	Mar. 31, 2014
Earnings Per Share	'
Schedule of calculations of basic and diluted EPS	'
		Three Months Ended
		March 31,
	(in thousands, except per share amounts)	2014		2013
	Net earnings attributable to Fluor Corporation	$	149,074	$	166,458
	Basic EPS:
	Weighted average common shares outstanding	160,213		162,408
	Basic earnings per share	$	0.93	$	1.02
	Diluted EPS:
	Weighted average common shares outstanding	160,213		162,408
	Diluted effect:
	Employee stock options, restricted stock units and shares and Value Driver Incentive units	1,709		1,191
	Conversion equivalent of dilutive convertible debt	438		392
	Weighted average diluted shares outstanding	162,360		163,991
	Diluted earnings per share	$	0.92	$	1.02
	Anti-dilutive securities not included above	440		1,382

Fair_Value_of_Financial_Instru1

Fair Value of Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2014
Fair Value of Financial Instruments	'
Schedule of assets and liabilities measured at fair value on a recurring basis	'
		March 31, 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)	$	13,270		$	13,270		$	—		$	—		$	50,081	$	50,081	$	—	$	—
	Marketable securities, current(2)	101,189			—			101,189			—			111,333		—		111,333
	Deferred compensation trusts(3)	87,528			87,528			—			—			87,507		87,507		—		—
	Marketable securities, noncurrent(4)	322,922			—			322,922			—			275,402		—		275,402		—
	Derivative assets(5)
	Commodity contracts	108			—			108			—			438		—		438		—
	Foreign currency contracts	1,587			—			1,587			—			855		—		855		—
	Liabilities:
	Derivative liabilities(5)
	Commodity contracts	$	97		$	—		$	97		$	—		$	3	$	—	$	3	$	—
	Foreign currency contracts	557			—			557			—			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 8 for the classification of commodity contracts and foreign currency contracts on 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	'
				March 31, 2014						December 31, 2013
		Fair Value		Carrying			Fair			Carrying			Fair
	(in thousands)	Hierarchy		Value			Value			Value			Value
	Assets:
	Cash(1)	Level 1		$	1,344,868		$	1,344,868		$	1,444,656		$	1,444,656
	Cash equivalents(2)	Level 2		783,920			783,920			788,845			788,845
	Marketable securities, current(3)	Level 2		82,320			82,320			74,690			74,690
	Notes receivable, including noncurrent portion(4)	Level 3		16,874			16,874			27,602			27,602
	Liabilities:
	3.375% Senior Notes(5)	Level 2		$	496,715		$	502,705		$	496,604		$	484,204
	1.5% Convertible Senior Notes(5)	Level 2		18,398			53,930			18,398			54,027
	Other borrowings(6)	Level 2		10,995			10,995			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)	3 Months Ended
	Mar. 31, 2014
Derivatives and Hedging	'
Schedule of fair values of derivatives designated as hedging instruments under ASC 815	'
		Asset Derivatives							Liability Derivatives
		Balance Sheet		March 31,			December 31,		Balance Sheet		March 31,			December 31,
	(in thousands)	Location		2014			2013		Location		2014			2013
	Commodity contracts	Other current assets		$	3		$	296	Other accrued liabilities		$	89		$	3
	Foreign currency contracts	Other current assets		1,587			855		Other accrued liabilities		557			967
	Commodity contracts	Other assets		105			142		Noncurrent liabilities		8			—
	Total			$	1,695		$	1,293			$	654		$	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	'
		After-Tax Amount of Gain							After-Tax Amount of Gain
		(Loss) Recognized in OCI							(Loss) Reclassified from
									AOCI into Earnings
		Three Months Ended							Three Months Ended
		March31,							March31,
	Cash Flow Hedges (in thousands)	2014			2013			Location of Gain (Loss)	2014			2013
	Commodity contracts	$	(143	)	$	31		Total cost of revenue	$	78		$	47
	Foreign currency contracts	(401		)	54			Total cost of revenue	8			147
	Interest rate contracts	—			—			Interest expense	(262		)	(262		)
	Total	$	(544	)	$	85			$	(176	)	$	(68	)
Hedging instruments designated as fair value hedges	'
Derivative gain (loss)	'
Schedule of pre-tax net gain recognized in earnings	'
				Three Months Ended
				March 31,
	Fair Value Hedges (in thousands)	Location of Gain		2014			2013
	Foreign currency contracts	Corporate general and administrative expense		$	1,259		$	3,819

Retirement_Benefits_Tables

Retirement Benefits (Tables) (Defined Benefit Pension Plans)	3 Months Ended
	Mar. 31, 2014
Defined Benefit Pension Plans	'
Defined Benefit Plans and Other Postretirement Benefit Plans	'
Schedule of components 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						Three Months Ended
		March 31,						March 31,
	(in thousands)	2014			2013			2014			2013
	Service cost	$	950		$	1,613		$	4,153		$	3,882
	Interest cost	7,919			7,275			8,804			8,017
	Expected return on assets	(7,526		)	(7,744		)	(12,248		)	(11,559		)
	Amortization of prior service cost	187			26			—			—
	Recognized net actuarial loss	1,109			1,510			1,984			1,700
	Net periodic pension expense	$	2,639		$	2,680		$	2,693		$	2,040

Financing_Arrangements_Tables

Financing Arrangements (Tables)	3 Months Ended
	Mar. 31, 2014
Financing Arrangements	'
Schedule of liability and equity components of the 2004 Notes	'
		March 31,		December 31,
	(in thousands)	2014		2013
	Carrying value of the equity component	$	19,519	$	19,519
	Principal amount and carrying value of the liability component	18,398		18,398

Operations_by_Business_Segment1

Operations by Business Segment and Geographical Area (Tables)	3 Months Ended
	Mar. 31, 2014
Operations by Business Segment and Geographical Area	'
Schedule of External Revenue, Segment Profit (Loss) and Total Assets by Segment	'
		Three Months Ended
		March 31,
	External Revenue (in millions)	2014			2013
	Oil & Gas	$	2,729.70		$	2,769.30
	Industrial & Infrastructure	1,668.10			3,132.20
	Government	593.2			751.2
	Global Services	142.7			149.9
	Power	250.9			383
	Total external revenue	$	5,384.60		$	7,185.60
		Three Months Ended
		March 31,
	Segment Profit (Loss) (in millions)	2014			2013
	Oil & Gas	$	137.9		$	104.5
	Industrial & Infrastructure	100.3			126.9
	Government	12.5			41.3
	Global Services	18.8			27.7
	Power	(1.4		)	(6.8		)
	Total segment profit	$	268.1		$	293.6
		March 31,			December 31,
	Total Assets by Segment (in millions)	2014			2013
	Oil & Gas	$	1,546.40		$	1,643.80
	Industrial & Infrastructure	842.4			909.7
	Government	521.7			580.6
	Global Services	781			758.9
	Power	141.8			154.9
Schedule of Reconciliation of Total Segment Profit to Earnings Before Taxes	'
		Three Months Ended
		March 31,
	Reconciliation of Total Segment Profit to Earnings Before Taxes (in millions)	2014			2013
	Total segment profit	$	268.1		$	293.6
	Corporate general and administrative expense	(37.8		)	(32.6		)
	Interest income (expense), net	(3.0		)	(2.9		)
	Earnings attributable to noncontrolling interests	44.2			48.2
	Earnings before taxes	$	271.5		$	306.3

Comprehensive_Income_Details

Comprehensive Income (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Other comprehensive loss, Before-Tax Amount:	'	'
Total other comprehensive loss, Before-Tax Amount	($16,782)	($12,721)
Less: Other comprehensive loss attributable to noncontrolling interests, Before-Tax Amount	-4,339	-507
Other comprehensive loss attributable to Fluor Corporation, Before-Tax Amount	-12,443	-12,214
Other comprehensive loss, Tax (Expense) Benefit:	'	'
Total other comprehensive loss, Tax Benefit (Expense)	3,256	4,743
Other comprehensive loss attributable to Fluor Corporation, Tax Benefit (Expense)	3,256	4,743
Other comprehensive loss, Net-of-Tax:	'	'
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX	-13,526	-7,978
Less: Other comprehensive loss attributable to noncontrolling interests, Net-of-Tax Amount	-4,339	-507
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-9,187	-7,471
Foreign currency translation adjustment	'	'
Other comprehensive loss, Before-Tax Amount:	'	'
Total other comprehensive loss, Before-Tax Amount	-17,800	-24,406
Other comprehensive loss, Tax (Expense) Benefit:	'	'
Total other comprehensive loss, Tax Benefit (Expense)	5,071	8,962
Other comprehensive loss, Net-of-Tax:	'	'
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX	-12,729	-15,444
Less: Other comprehensive loss attributable to noncontrolling interests, Net-of-Tax Amount	-4,278	-506
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-8,451	-14,938
Ownership share of equity method investees' other comprehensive income (loss)	'	'
Other comprehensive loss, Before-Tax Amount:	'	'
Total other comprehensive loss, Before-Tax Amount	-944	81
Other comprehensive loss, Tax (Expense) Benefit:	'	'
Total other comprehensive loss, Tax Benefit (Expense)	-1,054	133
Other comprehensive loss, Net-of-Tax:	'	'
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX	-1,998	214
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-1,998	214
Defined benefit pension and postretirement plan adjustments	'	'
Other comprehensive loss, Before-Tax Amount:	'	'
Total other comprehensive loss, Before-Tax Amount	2,636	11,585
Other comprehensive loss, Tax (Expense) Benefit:	'	'
Total other comprehensive loss, Tax Benefit (Expense)	-988	-4,344
Other comprehensive loss, Net-of-Tax:	'	'
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX	1,648	7,241
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	1,648	7,241
Unrealized gain (loss) on derivative contracts	'	'
Other comprehensive loss, Before-Tax Amount:	'	'
Total other comprehensive loss, Before-Tax Amount	-645	244
Other comprehensive loss, Tax (Expense) Benefit:	'	'
Total other comprehensive loss, Tax Benefit (Expense)	216	-92
Other comprehensive loss, Net-of-Tax:	'	'
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX	-429	152
Less: Other comprehensive loss attributable to noncontrolling interests, Net-of-Tax Amount	-61	-1
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-368	153
Unrealized loss on debt securities	'	'
Other comprehensive loss, Before-Tax Amount:	'	'
Total other comprehensive loss, Before-Tax Amount	-29	-225
Other comprehensive loss, Tax (Expense) Benefit:	'	'
Total other comprehensive loss, Tax Benefit (Expense)	11	84
Other comprehensive loss, Net-of-Tax:	'	'
TOTAL OTHER COMPREHENSIVE LOSS, NET OF TAX	-18	-141
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	($18)	($141)

Comprehensive_Income_Details_2

Comprehensive Income (Details 2) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Changes in the balances of each after-tax component of AOCI attributable to Fluor Corporation	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	($298,201)	($257,850)
Other comprehensive income (loss) before reclassifications	-11,422	-9,537
Amount reclassified from AOCI	2,235	2,066
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-9,187	-7,471
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	-307,388	-265,321
Foreign Currency Translation	'	'
Changes in the balances of each after-tax component of AOCI attributable to Fluor Corporation	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	-164	45,899
Other comprehensive income (loss) before reclassifications	-8,451	-14,938
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-8,451	-14,938
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	-8,615	30,961
Ownership Share of Equity Method Investees' Other Comprehensive Income (Loss)	'	'
Changes in the balances of each after-tax component of AOCI attributable to Fluor Corporation	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	-32,274	-43,019
Other comprehensive income (loss) before reclassifications	-1,998	214
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-1,998	214
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	-34,272	-42,805
Defined Benefit Pension and Postretirement Plans	'	'
Changes in the balances of each after-tax component of AOCI attributable to Fluor Corporation	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	-258,297	-252,724
Other comprehensive income (loss) before reclassifications	-403	5,219
Amount reclassified from AOCI	2,051	2,022
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	1,648	7,241
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	-256,649	-245,483
Unrealized Gain (Loss) on Derivative Contracts	'	'
Changes in the balances of each after-tax component of AOCI attributable to Fluor Corporation	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	-7,642	-8,960
Other comprehensive income (loss) before reclassifications	-544	85
Amount reclassified from AOCI	176	68
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-368	153
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	-8,010	-8,807
Unrealized Gain (Loss) on Available-for-Sale Securities	'	'
Changes in the balances of each after-tax component of AOCI attributable to Fluor Corporation	'	'
Accumulated Other Comprehensive Income (Loss), Net, balance at the beginning of the period	176	954
Other comprehensive income (loss) before reclassifications	-26	-117
Amount reclassified from AOCI	8	-24
Other comprehensive loss attributable to Fluor Corporation, Net-of-Tax Amount	-18	-141
Accumulated Other Comprehensive Income (Loss), Net, balance at the end of the period	$158	$813

Comprehensive_Income_Details_3

Comprehensive Income (Details 3) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 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	$7,952	$8,724
Other comprehensive income (loss) before reclassifications attributable to noncontrolling interests	-4,342	-506
Amount reclassified from AOCI attributable to noncontrolling interests	3	-1
Net other comprehensive income (loss) attributable to noncontrolling interests	-4,339	-507
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of end of year	3,613	8,217
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	7,885	8,723
Other comprehensive income (loss) before reclassifications attributable to noncontrolling interests	-4,278	-506
Net other comprehensive income (loss) attributable to noncontrolling interests	-4,278	-506
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of end of year	3,607	8,217
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	67	1
Other comprehensive income (loss) before reclassifications attributable to noncontrolling interests	-64	'
Amount reclassified from AOCI attributable to noncontrolling interests	3	-1
Net other comprehensive income (loss) attributable to noncontrolling interests	-61	-1
Accumulated Other Comprehensive Income (Loss), Net, Attributable to Noncontrolling Interests, balance as of end of year	$6	'

Comprehensive_Income_Details_4

Comprehensive Income (Details 4) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Reclassifications out of accumulated other comprehensive income (loss)	'	'
Total cost of revenue	($5,072,304)	($6,843,750)
Interest expense	-6,897	-6,955
Corporate general and administrative expense	-37,773	-32,602
Income tax benefit (expense)	-78,158	-93,077
NET EARNINGS	193,310	213,256
Net earnings attributable to noncontrolling interests	44,236	46,798
Net of tax and noncontrolling interest	149,074	166,458
Defined benefit pension plan | Reclassified out of AOCI	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'
Various accounts, primarily cost of revenue and corporate general and administrative expense	-3,281	-3,236
Income tax benefit (expense)	1,230	1,214
NET EARNINGS	-2,051	-2,022
Unrealized gain (loss) on derivative | Reclassified out of AOCI	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'
Income tax benefit (expense)	111	40
NET EARNINGS	-179	-67
Net earnings attributable to noncontrolling interests	-3	1
Net of tax and noncontrolling interest	-176	-68
Unrealized gain (loss) on derivative | Reclassified out of AOCI | Commodity contracts and foreign currency contracts	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'
Total cost of revenue	129	312
Unrealized gain (loss) on derivative | Reclassified out of AOCI | Interest rate contracts	'	'
Reclassifications out of accumulated other comprehensive income (loss)	'	'
Interest expense	-419	-419
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	-13	38
Income tax benefit (expense)	5	-14
NET EARNINGS	($8)	$24

Income_Taxes_Details

Income Taxes (Details)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Income Taxes	'	'
Effective tax rate, continuing operations (as a percent)	28.80%	30.40%

Consolidated_Statement_of_Cash1

Consolidated Statement of Cash Flows (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Cash paid during the year	'	'
Cash paid for interest	$9.90	$10.10
Income tax payments, net of refunds	$37.20	$56

Earnings_Per_Share_Details

Earnings Per Share (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net earnings	'	'
Net earnings attributable to Fluor Corporation (in dollars)	$149,074,000	$166,458,000
Basic EPS:	'	'
Weighted average common shares outstanding (in shares)	160,213,000	162,408,000
Basic earnings per share (in dollars per share)	$0.93	$1.02
Diluted EPS:	'	'
Weighted average common shares outstanding (in shares)	160,213,000	162,408,000
Diluted effect:	'	'
Employee stock options, restricted stock units and shares and Value Driver Incentive units (in shares)	1,709,000	1,191,000
Conversion equivalent of dilutive convertible debt (in shares)	438,000	392,000
Weighted average diluted shares outstanding (in shares)	162,360,000	163,991,000
Diluted earnings per share (in dollars per share)	$0.92	$1.02
Anti-dilutive securities not included above (in shares)	440,000	1,382,000
Common stock repurchased and cancelled, shares (in shares)	2,461,800	'
Common stock repurchased and cancelled, amount (in dollars)	$192,000,000	'

Fair_Value_of_Financial_Instru2

Fair Value of Financial Instruments (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Fair value of assets and liabilities measured on recurring basis	'	'	'
Deferred compensation trusts	$390,354,000	'	$388,408,000
Other-than-temporary impairment of available-for-sale securities	0	'	'
Proceeds from the sales and maturities of available-for-sale securities	64,000,000	75,000,000	'
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	13,000,000	'	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	103,000,000	'	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	75,000,000	'	26,000,000
Fair Value, Measurements, Recurring | Corporate debt securities	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Available-for-sale securities	234,000,000	'	228,000,000
Fair Value, Measurements, Recurring | Commercial paper	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Available-for-sale securities	9,000,000	'	7,000,000
Fair Value, Measurements, Recurring | Other debt securities	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Available-for-sale securities	3,000,000	'	7,000,000
Fair Value, Measurements, Recurring | Total	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Cash and cash equivalents	13,270,000	'	50,081,000
Marketable securities, current	101,189,000	'	111,333,000
Deferred compensation trusts	87,528,000	'	87,507,000
Marketable securities, noncurrent	322,922,000	'	275,402,000
Fair Value, Measurements, Recurring | Total | Commodity contracts	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Derivative assets	108,000	'	438,000
Derivative liabilities	97,000	'	3,000
Fair Value, Measurements, Recurring | Total | Foreign currency contracts	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Derivative assets	1,587,000	'	855,000
Derivative liabilities	557,000	'	967,000
Fair Value, Measurements, Recurring | Level 1	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Cash and cash equivalents	13,270,000	'	50,081,000
Deferred compensation trusts	87,528,000	'	87,507,000
Fair Value, Measurements, Recurring | Level 2	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Marketable securities, current	101,189,000	'	111,333,000
Marketable securities, noncurrent	322,922,000	'	275,402,000
Fair Value, Measurements, Recurring | Level 2 | Commodity contracts	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Derivative assets	108,000	'	438,000
Derivative liabilities	97,000	'	3,000
Fair Value, Measurements, Recurring | Level 2 | Foreign currency contracts	'	'	'
Fair value of assets and liabilities measured on recurring basis	'	'	'
Derivative assets	1,587,000	'	855,000
Derivative liabilities	$557,000	'	$967,000

Fair_Value_of_Financial_Instru3

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

Mar. 31, 2014

Sep. 30, 2011

Mar. 31, 2014

Feb. 29, 2004

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 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

'

'

'

'

$1,344,868

$1,444,656

'

'

'

'

'

'

$1,344,868

$1,444,656

'

'

'

'

'

'

'

'

'

'

Cash equivalents

'

'

'

'

783,920

788,845

'

'

'

'

'

'

'

'

783,920

788,845

'

'

'

'

'

'

'

'

Marketable securities, current

'

'

'

'

82,320

74,690

'

'

'

'

'

'

'

'

82,320

74,690

'

'

'

'

'

'

'

'

Notes receivable, including noncurrent portion

'

'

'

'

16,874

27,602

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

16,874

27,602

Debt

'

'

'

'

'

'

$10,995

$11,441

$496,715

$496,604

$18,398

$18,398

'

'

'

'

$10,995

$11,441

$502,705

$484,204

$53,930

$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 $)

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Mar. 31, 2014

Dec. 31, 2013

Mar. 31, 2014

Dec. 31, 2013

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

Maximum

Maximum

Commodity contracts

Commodity contracts

Commodity contracts

Commodity contracts

Commodity contracts

Commodity contracts

Commodity 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

Noncurrent liabilities

Other current assets

Other current assets

Other accrued liabilities

Other accrued liabilities

Derivatives, Fair Value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total gross notional amount

$8,000,000

'

$147,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Derivative contract maturity

'

31-May-17

'

31-Dec-14

'

'

'

'

'

'

'

'

'

'

'

'

'

Asset Derivatives

'

'

'

'

1,695,000

1,293,000

3,000

296,000

105,000

142,000

'

'

'

1,587,000

855,000

'

'

Liability Derivatives

'

'

'

'

$654,000

$970,000

'

'

'

'

$89,000

$3,000

$8,000

'

'

$557,000

$967,000

Derivatives_and_Hedging_Detail1

Derivatives and Hedging (Details 2) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Derivative Instruments, Gain (Loss)	'	'
After-tax amount of gain (loss) recognized in OCI	($544)	$85
After-tax amount of gain (loss) reclassified from AOCI into earnings	-176	-68
Commodity contracts	'	'
Derivative Instruments, Gain (Loss)	'	'
After-tax amount of gain (loss) recognized in OCI	-143	31
Commodity contracts | Total cost of revenue	'	'
Derivative Instruments, Gain (Loss)	'	'
After-tax amount of gain (loss) reclassified from AOCI into earnings	78	47
Foreign currency contracts	'	'
Derivative Instruments, Gain (Loss)	'	'
After-tax amount of gain (loss) recognized in OCI	-401	54
Foreign currency contracts | Corporate general and administrative expense	'	'
Derivative Instruments, Gain (Loss)	'	'
Net Gains Recognized in Earnings	1,259	3,819
Foreign currency contracts | Total cost of revenue	'	'
Derivative Instruments, Gain (Loss)	'	'
After-tax amount of gain (loss) reclassified from AOCI into earnings	8	147
Interest rate contracts | Interest expense	'	'
Derivative Instruments, Gain (Loss)	'	'
After-tax amount of gain (loss) reclassified from AOCI into earnings	($262)	($262)

Retirement_Benefits_Details

Retirement Benefits (Details) (USD $)	3 Months Ended	12 Months Ended		3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2013
	Defined Benefit Pension Plans	Defined Benefit Pension Plans	Defined Benefit Pension Plans	Defined Benefit U.S. Pension Plans	Defined Benefit U.S. Pension Plans	Defined Benefit Non-U.S. Pension Plans	Defined Benefit Non-U.S. Pension Plans
		Minimum	Maximum
Components of net periodic pension expense	'	'	'	'	'	'	'
Service cost	'	'	'	$950,000	$1,613,000	$4,153,000	$3,882,000
Interest cost	'	'	'	7,919,000	7,275,000	8,804,000	8,017,000
Expected return on assets	'	'	'	-7,526,000	-7,744,000	-12,248,000	-11,559,000
Amortization of prior service cost	'	'	'	187,000	26,000	'	'
Recognized net actuarial loss	'	'	'	1,109,000	1,510,000	1,984,000	1,700,000
Net periodic pension expense	'	'	'	2,639,000	2,680,000	2,693,000	2,040,000
Expected future benefit payments	'	30,000,000	60,000,000	'	'	'	'
Company contributions	$10,000,000	'	'	'	'	'	'

Financing_Arrangements_Details

Financing Arrangements (Details) (USD $)	1 Months Ended	3 Months Ended		1 Months Ended
	Sep. 30, 2011	Mar. 31, 2014	Mar. 31, 2014	Feb. 29, 2004	Mar. 31, 2014
	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
			Change of control triggering event
Financing Arrangements	'	'	'	'	'
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%	'	'

Financing_Arrangements_Details1

Financing Arrangements (Details 2) (USD $)	Mar. 31, 2014	Dec. 31, 2013	Feb. 29, 2004	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 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
Financing Arrangements	'	'	'	'	'	'	'	'
Carrying value of the equity component	'	'	'	'	'	$19,519,000	'	$19,519,000
Principal amount and carrying value of the liability component	29,393,000	29,839,000	'	'	'	18,398,000	'	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	'
If-converted value	'	'	'	'	'	52,000,000	'	'
Amount outstanding under credit facilities	'	'	'	$11,000,000	$11,000,000	'	'	'

StockBased_Plans_Details

Stock-Based Plans (Details) (Executives, USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restricted stock units	'	'
Stock Plans	'	'
Share-based compensation arrangement by share-based payment award, restricted stock units and restricted shares (in shares)	357,138	453,185
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	$61.43
Share-based compensation arrangement by share-based payment award, award vesting period	'3 years	'3 years
Stock Options	'	'
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
Restricted shares	'	'
Stock Plans	'	'
Share-based compensation arrangement by share-based payment award, award vesting period	'3 years	'3 years
Performance-based VDI units	'	'
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
In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Noncontrolling Interests	'	'
Net earnings attributable to noncontrolling interests	$44,236	$46,798
Distributions paid to noncontrolling interest holders	15,898	17,942
Capital contribution from noncontrolling interests	$46	$202

Contingencies_and_Commitments_

Contingencies and Commitments (Details) (USD $)	1 Months Ended
In Millions, unless otherwise specified	Nov. 30, 2006	Jul. 31, 2011	Mar. 31, 2014
	Conex International v. Fluor Enterprises, Inc.	St. Joe and Doe Run	St. Joe and Doe Run
		St. Joe and Doe Run December 2010 litigation	St. Joe and Doe Run additional litigation matters
		plaintiff	lawsuit
Litigation and dispute resolution	'	'	'
Number of plaintiffs	'	16	'
Compensatory and economic damages	'	$38.50	'
Punitive damages	'	320	'
Number of lawsuits	'	'	19
Damages awarded, subsequently appealed and reverse	$99	'	'

Contingencies_and_Commitments_1

Contingencies and Commitments (Details 2) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Recognized claims against clients	'	'
Contracts receivable, claims and uncertain amounts	$23	$0

Guarantees_Details

Guarantees (Details) (Performance Guarantee, USD $)	Mar. 31, 2014
In Billions, unless otherwise specified
Performance Guarantee	'
Guarantees	'
Estimated performance guarantees outstanding	$13.60

Variable_Interest_Entities_Det

Variable Interest Entities (Details) (USD $)	3 Months Ended									3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014	Mar. 31, 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
			Majority	Majority			Future funding commitment			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	'	'	'	'	$117,000,000	$122,000,000	'	'	'	'	'
Future funding amount	'	'	'	'	'	'	33,000,000	'	'	'	'
Revenue	5,384,636,000	7,185,624,000	'	'	'	'	'	'	'	165,000,000	753,000,000
Carrying value of assets	'	'	'	'	'	'	'	1,100,000,000	1,200,000,000	'	'
Carrying value of liabilities	'	'	'	'	'	'	'	$620,000,000	$731,000,000	'	'

Operations_by_Business_Segment2

Operations by Business Segment and Geographical Area (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Operating information by reportable segment	'	'
Total external revenue	$5,384,636,000	$7,185,624,000
Oil and Gas Segment	'	'
Operating information by reportable segment	'	'
Total external revenue	2,729,700,000	2,769,300,000
Industrial and Infrastructure Segment	'	'
Operating information by reportable segment	'	'
Total external revenue	1,668,100,000	3,132,200,000
Government Segment	'	'
Operating information by reportable segment	'	'
Total external revenue	593,200,000	751,200,000
Global Services Segment	'	'
Operating information by reportable segment	'	'
Total external revenue	142,700,000	149,900,000
Power Segment	'	'
Operating information by reportable segment	'	'
Total external revenue	250,900,000	383,000,000
Intercompany | Global Services Segment	'	'
Operating information by reportable segment	'	'
Total external revenue	136,000,000	117,000,000
Reportable segments	'	'
Operating information by reportable segment	'	'
Total segment profit (loss)	268,100,000	293,600,000
Reportable segments | Oil and Gas Segment	'	'
Operating information by reportable segment	'	'
Total segment profit (loss)	137,900,000	104,500,000
Reportable segments | Industrial and Infrastructure Segment	'	'
Operating information by reportable segment	'	'
Total segment profit (loss)	100,300,000	126,900,000
Reportable segments | Government Segment	'	'
Operating information by reportable segment	'	'
Total segment profit (loss)	12,500,000	41,300,000
Reportable segments | Global Services Segment	'	'
Operating information by reportable segment	'	'
Total segment profit (loss)	18,800,000	27,700,000
Reportable segments | Power Segment	'	'
Operating information by reportable segment	'	'
Total segment profit (loss)	-1,400,000	-6,800,000
Research and development expense	$13,000,000	$15,000,000

Operations_by_Business_Segment3

Operations by Business Segment and Geographical Area (Details 2) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reconciliation of total segment profit to earnings before taxes	'	'
Corporate general and administrative expense	($37,773,000)	($32,602,000)
Interest income (expense), net	3,000,000	-2,900,000
EARNINGS BEFORE TAXES	271,468,000	306,333,000
Reportable segments	'	'
Reconciliation of total segment profit to earnings before taxes	'	'
Total segment profit	268,100,000	293,600,000
Reconciling item | Earnings attributable to noncontrolling interests	'	'
Reconciliation of total segment profit to earnings before taxes	'	'
EARNINGS BEFORE TAXES	$44,200,000	$48,200,000

Operations_by_Business_Segment4

Operations by Business Segment and Geographical Area (Details 3) (USD $)	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	$7,991,937	$8,323,850
Reportable segments | Oil and Gas Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	1,546,400	1,643,800
Reportable segments | Industrial and Infrastructure Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	842,400	909,700
Reportable segments | Government Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	521,700	580,600
Reportable segments | Global Services Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	781,000	758,900
Reportable segments | Power Segment	'	'
Operations by Business Segment and Geographical Area	'	'
Total assets by segment	$141,800	$154,900