KBR (KBR) 10-Q 2 Aug 22 2022 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2022	Jul. 21, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	001-33146
Entity Registrant Name	KBR, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-4536774
Entity Address, Address Line One	601 Jefferson Street, Suite 3400
Entity Address, City or Town	Houston
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	77002
City Area Code	713
Local Phone Number	753-2000
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	KBR
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		139,043,581
Amendment Flag	false
Entity Central Index Key	0001357615
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenues	$ 1,616	$ 1,536	[1]	$ 3,330	$ 2,997	[1]
Cost of revenues	(1,415)	(1,329)	[1]	(2,933)	(2,622)	[1]
Gross profit	201	207	[1]	397	375	[1]
Equity in earnings (losses) of unconsolidated affiliates	10	(186)	[1]	(108)	(174)	[1]
Selling, general and administrative expenses	(105)	(103)	[1]	(212)	(192)	[1]
Acquisition and integration related costs	0	(3)	[1]	(1)	(4)	[1]
Gain (loss) on disposition of assets and investments	22	(1)	[1]	22	(2)	[2]
Other	(1)	(2)	[1]	(2)	(2)	[1]
Operating income (loss)	127	(88)	[1]	96	1	[1]
Interest expense	(21)	(20)	[1]	(41)	(39)	[1]
Unrealized gain on cost method investment	(16)	0	[1]	(16)	0	[1]
Other non-operating income (expense)	5	2	[1]	5	(1)	[1]
Income (loss) before income taxes	127	(106)	[1]	76	(39)	[1]
Provision for income taxes	(33)	(40)	[1]	(52)	(57)	[1]
Net income (loss)	94	(146)	[3]	24	(96)	[3]
Less: Net income attributable to noncontrolling interests	0	3	[1]	1	4	[1]
Net income (loss) attributable to KBR	$ 94	$ (149)	[1]	$ 23	$ (100)	[1]
Net income (loss) attributable to KBR per share
Basic (in usd per share)	$ 0.68	$ (1.06)	[1]	$ 0.17	$ (0.71)	[1]
Diluted (in usd per share)	$ 0.61	$ (1.06)	[1]	$ 0.17	$ (0.71)	[1]
Basic weighted average common shares outstanding (in shares)	139	141	[1]	139	141	[1]
Diluted weighted average common shares outstanding (in shares)	156	141	[1]	156	141	[1]
Cash dividends declared per share (in usd per share)	$ 0.12	$ 0.11	[1]	$ 0.24	$ 0.22	[1]
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[3]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	[1]	Jun. 30, 2022	Jun. 30, 2021	[1]
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 94	$ (146)		$ 24	$ (96)
Other comprehensive income (loss):
Foreign currency translation adjustments	(34)	5		(53)	12
Pension and post-retirement benefits	6	7		12	16
Changes in fair value of derivatives	11	0		35	19
Other comprehensive income (loss)	(17)	12		(6)	47
Income tax expense:
Foreign currency translation adjustments	0	(1)		0	(1)
Pension and post-retirement benefits	(1)	(1)		(2)	(3)
Changes in fair value of derivatives	(2)	(1)		(7)	(5)
Income tax expense	(3)	(3)		(9)	(9)
Other comprehensive income (loss), net of tax	(20)	9		(15)	38
Comprehensive income (loss)	74	(137)		9	(58)
Less: Comprehensive income attributable to noncontrolling interests	0	3		1	4
Comprehensive income (loss) attributable to KBR	$ 74	$ (140)		$ 8	$ (62)
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	[1]
Current assets:
Cash and cash equivalents	$ 516	$ 370
Accounts receivable, net of allowance for credit losses of $11 and $13, respectively	1,033	1,411
Contract assets	208	224
Other current assets	125	147
Total current assets	1,882	2,152
Claims and accounts receivable	30	30
Property, plant, and equipment, net of accumulated depreciation of $420 and $431 (including net PPE of $16 and $19 owned by a variable interest entity), respectively	135	136
Operating lease right-of-use assets	150	158
Goodwill	2,025	2,060
Intangible assets, net of accumulated amortization of $308 and $291, respectively	656	708
Equity in and advances to unconsolidated affiliates	199	576
Deferred income taxes	202	231
Other assets	239	153
Total assets	5,518	6,204
Current liabilities:
Accounts payable	647	1,026
Contract liabilities	337	313
Accrued salaries, wages and benefits	296	317
Operating lease liabilities	44	41
Other current liabilities	168	178
Total current liabilities	1,492	1,875
Pension obligations	38	88
Employee compensation and benefits	97	111
Income tax payable	93	95
Deferred income taxes	72	70
Long-term debt	1,746	1,875
Operating lease liabilities	179	188
Other liabilities	205	219
Total liabilities	3,922	4,521
Commitments and Contingencies (Notes 6, 12 and 13)
KBR shareholders’ equity:
Preferred stock, $0.001 par value, 50,000,000 shares authorized, none issued	0	0
Common stock, $0.001 par value 300,000,000 shares authorized, 180,701,942 and 179,983,586 shares issued, and 139,042,581 and 139,786,136 shares outstanding, respectively	0	0
PIC	2,222	2,206
Retained earnings	1,276	1,287
Treasury stock, 41,659,361 shares and 40,197,450 shares, at cost, respectively	(1,016)	(943)
AOCL	(896)	(881)
Total KBR shareholders’ equity	1,586	1,669
Noncontrolling interests	10	14
Total shareholders’ equity	1,596	1,683
Total liabilities and shareholders’ equity	$ 5,518	$ 6,204
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 11	$ 13
Accumulated depreciation, PP&E	420	431
PP&E owned by a VIE, net	16	19
Accumulated amortization, Intangibles	$ 308	$ 291
Preferred stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	50,000,000	50,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in usd per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	180,701,942	179,983,586
Common stock, shares outstanding (in shares)	139,042,581	139,786,136
Treasury stock, shares (in shares)	41,659,361	40,197,450

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total		Adjustment	Adjusted balance	As Previously Reported	PIC	PIC Adjustment	PIC Adjusted balance	PIC As Previously Reported	Retained Earnings	Retained Earnings Adjustment	Retained Earnings Adjusted balance	Retained Earnings As Previously Reported	Treasury Stock	Treasury Stock Adjusted balance	Treasury Stock As Previously Reported	AOCL	AOCL Adjusted balance	AOCL As Previously Reported	NCI	NCI Adjusted balance	NCI As Previously Reported
Beginning balance at Dec. 31, 2020			$ (27)	$ 1,582	$ 1,609		$ (45)	$ 2,177	$ 2,222		$ 18	$ 1,323	$ 1,305		$ (864)	$ (864)	$ (1,083)	$ (1,083)	$ (1,083)		$ 29	$ 29
Ending balance at Mar. 31, 2021	$ 1,675		(25)	1,650		$ 2,230	(45)	2,185		$ 1,336	20	1,356		$ (866)	(866)		(1,054)	(1,054)		$ 29	29
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting standards update [extensible list]	Accounting Standards Update 2020-06
Beginning balance at Dec. 31, 2020			(27)	1,582	1,609		(45)	2,177	2,222		18	1,323	1,305		(864)	(864)	(1,083)	(1,083)	(1,083)		29	29
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	$ 8					8
Common stock issued upon exercise of stock options	10					10
Dividends declared to shareholders	(31)									(31)
Repurchases of common stock	(32)													(32)
Issuance of ESPP shares	2													2
Distributions to noncontrolling interests	(1)																			(1)
Other	(1)													(1)						0
Net Income	(96)	[1]			(101)					(100)										4
Other comprehensive income (loss), net of tax	38	[1]															38
Ending balance at Jun. 30, 2021	1,479					2,195				1,192				(895)			(1,045)			32
Beginning balance at Dec. 31, 2020			(27)	1,582	1,609		(45)	2,177	2,222		18	1,323	1,305		(864)	(864)	(1,083)	(1,083)	(1,083)		29	29
Ending balance at Dec. 31, 2021	$ 1,683	[2]	(18)	1,683	1,701		(45)	2,206	2,251		27	1,287	1,260		(943)	(943)	(881)	(881)	(881)		14	14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accounting standards update [extensible list]	Accounting Standards Update 2020-06
Beginning balance at Mar. 31, 2021	$ 1,675		(25)	1,650		2,230	(45)	2,185		1,336	20	1,356		(866)	(866)		(1,054)	(1,054)		29	29
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	4					4
Common stock issued upon exercise of stock options	6					6
Dividends declared to shareholders	(15)									(15)
Repurchases of common stock	(28)													(28)
Distributions to noncontrolling interests	(1)																			(1)
Other														(1)						1
Net Income	(146)	[1]			(149)					(149)										3
Other comprehensive income (loss), net of tax	9	[1]															9
Ending balance at Jun. 30, 2021	1,479					2,195				1,192				(895)			(1,045)			32
Beginning balance at Dec. 31, 2021	1,683	[2]	$ (18)	$ 1,683	$ 1,701		$ (45)	$ 2,206	$ 2,251		$ 27	$ 1,287	$ 1,260		$ (943)	$ (943)	(881)	$ (881)	$ (881)		$ 14	$ 14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	10					10
Common stock issued upon exercise of stock options	5					5
Dividends declared to shareholders	(34)									(34)
Repurchases of common stock	(74)													(74)
Issuance of ESPP shares	1					1								0
Distributions to noncontrolling interests	(2)																			(2)
Other	(2)									0				1						(3)
Net Income	24									23										1
Other comprehensive income (loss), net of tax	(15)																(15)
Ending balance at Jun. 30, 2022	1,596					2,222				1,276				(1,016)			(896)			10
Beginning balance at Mar. 31, 2022	1,578					2,216				1,200				(976)			(876)			14
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation	5					5
Common stock issued upon exercise of stock options	1					1
Dividends declared to shareholders	(17)									(17)
Repurchases of common stock	(41)													(41)
Issuance of ESPP shares	0					0								0
Distributions to noncontrolling interests	(2)																			(2)
Other	(2)									(1)				1						(2)
Net Income	94									94
Other comprehensive income (loss), net of tax	(20)																(20)
Ending balance at Jun. 30, 2022	$ 1,596					$ 2,222				$ 1,276				$ (1,016)			$ (896)			$ 10
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Shareholders' Equity (Parenthetical) - $ / shares	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
Statement of Stockholders' Equity [Abstract]
Cash dividends declared per share (in usd per share)	$ 0.12	$ 0.11	[1]	$ 0.24	$ 0.22	[1]
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Condensed Consolidated Statem_5

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		3 Months Ended			6 Months Ended			12 Months Ended
		Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021		Dec. 31, 2021
Cash flows from operating activities:
Net income (loss)		$ 94	$ (146)	[1]	$ 24	$ (96)	[1]
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization					66	76	[2]
Equity in losses of unconsolidated affiliates		(10)	186	[3]	108	174	[3]
Deferred income tax					33	36	[2]
(Gain) loss on disposition of assets		(22)	1	[3]	(22)	2	[2]
Unrealized gain on cost method investment		(16)	0	[3]	(16)	0	[3]
Other					15	17	[2]
Changes in operating assets and liabilities:
Accounts receivable, net of allowance for credit losses					361	(29)	[2]
Contract assets					15	(4)	[2]
Accounts payable					(366)	65	[2]
Contract liabilities					36	(56)	[2]
Accrued salaries, wages and benefits					(17)	13	[2]
Payments on operating lease obligation					(29)	(30)	[2]
Payments from unconsolidated affiliates, net					8	10	[2]
Distributions of earnings from unconsolidated affiliates					43	26	[2]
Pension funding					(22)	(24)	[2]
Restructuring reserve					(7)	(14)	[2]
Other assets and liabilities					(16)	(12)	[2]
Total cash flows provided by operating activities					214	154	[2]
Cash flows from investing activities:
Purchases of property, plant and equipment					(19)	(16)	[2]
Return of (investments in) equity method joint ventures, net					189
Return of (investments in) equity method joint ventures, net	[2]					(7)
Investment in cost method investment					(61)	(7)	[2]
Proceeds from sale of assets or investments					60	0	[2]
Acquisition of technology license					0	(7)	[2]
Other					0	(1)	[2]
Total cash flows provided by (used in) investing activities					169	(38)	[2]
Cash flows from financing activities:
Payments on short-term and long-term debt					(8)	(12)	[2]
Payments on revolving credit facility					(97)	0
Payments of dividends to shareholders					(32)	(30)	[2]
Net proceeds from issuance of common stock					5	10	[2]
Payments to reacquire common stock					(74)	(32)	[2]
Other					(9)	(10)	[2]
Total cash flows used in financing activities					(215)	(74)	[2]
Effect of exchange rate changes on cash					(22)	5	[2]
Increase in cash and cash equivalents					146	47	[2]
Cash and cash equivalents at beginning of period					370	436	[2]	$ 436	[2]
Cash and cash equivalents at end of period		516	483	[2]	516	483	[2]	$ 370
Noncash financing activities
Dividends declared		$ 17	$ 15	[2]	$ 17	$ 15	[2]
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[3]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements were prepared using generally accepted accounting principles for interim financial information and the instructions to Form 10-Q and Regulation S-X. Accordingly, these financial statements do not include all information or notes required by generally accepted accounting principles for annual financial statements and should be read together with our 2021 Annual Report on Form 10-K. The condensed consolidated financial statements include all normal and recurring adjustments necessary to present fairly our financial position as of June 30, 2022, the results of our operations for the three and six months ended June 30, 2022 and 2021 and our cash flows for the six months ended June 30, 2022 and 2021. Certain amounts in prior periods have been reclassified to conform with current period presentation. There are many factors that may affect the accuracy of our cost estimates and ultimately our future profitability. These include, but are not limited to, the availability and costs of resources (such as labor, materials and equipment), productivity and weather. We generally realize both lower and higher than expected margins on projects in any given period. We recognize revisions of revenues and costs in the period in which the revisions are known. This may result in the recognition of costs before the recognition of related revenue recovery, if any. Our significant accounting policies are detailed in "Note 1. Significant Accounting Policies" of our 2021 Annual Report on Form 10-K. We have evaluated all events and transactions occurring after the balance sheet date but before the financial statements were issued and have included the appropriate disclosures. Principles of Consolidation The accompanying condensed consolidated financial statements have been prepared in accordance with U.S. GAAP and include the accounts of KBR, Inc. and the subsidiaries it controls, including VIEs where it is the primary beneficiary (collectively, the "Company," "KBR", "we", "us" or "our"). We account for investments over which we have significant influence, but not a controlling financial interest, using the equity method of accounting. See Note 8 to our condensed consolidated financial statements for further discussion of our equity investments and VIEs. All material intercompany balances and transactions are eliminated in consolidation. Adoption of ASU 2020-06 Effective January 1, 2022, we adopted ASU No. 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity ("ASU 2020-06") using the full retrospective method. Accordingly, the Company is presenting the consolidated financial statements for the year ended December 31, 2021, and the condensed consolidated financial statements for the six months ended June 30, 2021, as if ASU 2020-06 had been effective for those periods. This guidance simplifies the accounting for convertible instruments by reducing the number of accounting models available for convertible debt instruments. As such, we no longer separate the Convertible Senior Notes into liability and equity components. The conversion option that was previously accounted for in equity under the cash conversion model was recombined into the Convertible Senior Notes outstanding, and as a result, PIC and the related unamortized debt discount on the Convertible Senior Notes were reduced. The removal of the remaining debt discount recorded for this previous separation has the effect of increasing our net debt balance. ASU 2020-06 also eliminates the treasury stock method to calculate diluted earnings per share for certain convertible instruments and requires the use of the if-converted method. As such, we are required to apply the if-converted method to our Convertible Senior Notes when calculating diluted income (loss) per share. Under the if-converted method, the principal amount and any conversion spread of the Convertible Senior Notes, to the extent dilutive, are assumed to be converted into common stock at the beginning of the period and net income (loss) attributable to KBR is adjusted to reverse the effect of any interest expense associated with the Convertible Senior Notes. For the years ended December 31, 2021 and 2020, the adoption of this standard did not materially impact our financial performance, financial position or cash flow, but it did result in an increase in the number of diluted weighted average shares outstanding utilized in our diluted income (loss) per share calculation in periods of net income attributable to KBR. For the year ending December 31, 2022, the adoption of this standard will not materially impact our financial performance, financial position or cash flow, but it may result in an increase in the number of diluted weighted average shares outstanding utilized in our diluted income (loss) per share calculation. Select unaudited condensed consolidated balance sheet line items, which reflect the adoption of ASU 2020-06, are as follows: December 31, 2021 Dollars in millions As Previously Reported Adjustments As Adjusted Assets: Deferred income taxes $ 226 $ 5 $ 231 Liabilities: Long-term debt $ 1,852 $ 23 $ 1,875 KBR Shareholders' Equity: PIC $ 2,251 $ (45) $ 2,206 Retained earnings 1,260 27 1,287 Select unaudited condensed consolidated statement of operations line items, which reflect the adoption of ASU 2020-06, are as follows: Three Months Ended June 30, 2021 Dollars in millions As Previously Reported Adjustments As Adjusted Interest Expense $ (23) $ 3 $ (20) Income before income taxes $ (109) $ 3 $ (106) Provision for income taxes $ (40) $ — $ (40) Net income $ (149) $ 3 $ (146) Net income attributable to KBR $ (152) $ 3 $ (149) Net income attributable to KBR per share: Basic $ (1.08) $ 0.02 $ (1.06) Diluted $ (1.08) $ 0.02 $ (1.06) Basic weighted average common shares outstanding $ 141 $ — $ 141 Diluted weighted average common shares outstanding $ 141 $ — $ 141 Six Months Ended June 30, 2021 Dollars in millions As Previously Reported Adjustments As Adjusted Interest Expense $ (45) $ 6 $ (39) Income before income taxes $ (45) $ 6 $ (39) Provision for income taxes $ (56) $ (1) $ (57) Net income $ (101) $ 5 $ (96) Net income attributable to KBR $ (105) $ 5 $ (100) Net income attributable to KBR per share: Basic $ (0.75) $ 0.04 $ (0.71) Diluted $ (0.75) $ 0.04 $ (0.71) Basic weighted average common shares outstanding $ 141 $ — $ 141 Diluted weighted average common shares outstanding $ 141 $ — $ 141 Select unaudited condensed consolidated statement of cash flows line items, which reflect the adoption of ASU 2020-06, are as follows: Six Months Ended June 30, 2021 Dollars in millions As Previously Reported Adjustments As Adjusted Cash flows from operating activities: Net Income $ (101) $ 5 $ (96) Adjustments to reconcile net income to net cash provided by operating activities: Deferred income tax 35 1 36 Other 23 (6) 17 Total cash flows provided by operating activities $ 154 $ — $ 154 Impact of Adoption of Other New Accounting Standards Effective January 1, 2022, we adopted ASU No. 2021-04. Earnings Per Share (Topic 260), Debt - Modifications and Extinguishments (Subtopic 470-50), Compensation - Stock Compensation (Topic 718), and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options. This ASU provides guidance for a modification or an exchange of a freestanding equity-classified written call option that is not within the scope of another Topic. It specifically addresses measurement, treatment and recognition of a freestanding equity-classified written call option modification or exchange. The adoption of this standard did not have an impact on our financial statements. Effective January 1, 2022, we adopted ASU 2021-10, Government Assistance (Topic 832), Disclosures by Business Entities About Government Assistance, which requires entities to provide disclosures on material government assistance transactions for annual reporting periods. The disclosures include information around the nature of the assistance, the related accounting policies used to account for government assistance, the effect of government assistance on the entity’s financial statements and any significant terms and conditions of the agreements, including commitments and contingencies. The new standard only impacts annual financial statement footnote disclosures. Therefore, the adoption did not have a material effect on our condensed consolidated financial statements. Additional Balance Sheet Information Other Current Liabilities The components of other current liabilities on our condensed consolidated balance sheets as of June 30, 2022, and December 31, 2021, are presented below: June 30, December 31, Dollars in millions 2022 2021 Current maturities of long-term debt $ 16 $ 16 Reserve for estimated losses on uncompleted contracts 14 17 Retainage payable 10 13 Restructuring reserve 14 17 Value-added tax payable 37 34 Dividend payable 17 16 Other miscellaneous liabilities 60 65 Total other current liabilities $ 168 $ 178

Business Segment Information

Business Segment Information	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Business Segment Information	Business Segment Information We provide a wide range of professional services and the management of our business is heavily focused on major projects or programs within each of our reportable segments. At any given time, government programs and joint ventures represent a substantial part of our operations. We are organized into two core business segments, Government Solutions and Sustainable Technology Solutions and one non-core business segment as described below: Government Solutions. Our Government Solutions business segment provides full life-cycle support solutions to defense, intelligence, space, aviation and other programs and missions for military and other government agencies primarily in the U.S., U.K. and Australia. KBR's services cover the full spectrum spanning research and development, advanced prototyping, acquisition support, systems engineering, C4ISR, cyber analytics, space domain awareness, test and evaluation, systems integration and program management, global supply chain management and operations readiness and support. With the acquisition of Frazer-Nash Consultancy Limited ("Frazer-Nash") on October 20, 2021 (described in Note 4 to the condensed consolidated financial statements), we have expanded our broad range of professional advisory services that deliver high-end systems engineering, systems assurance and technology to customers across the defense, renewable energy and critical infrastructure sectors to the U.K. Sustainable Technology Solutions. Our Sustainable Technology Solutions business segment is anchored by our portfolio of over 70 innovative, proprietary, sustainability-focused process technologies that we license spanning four primary areas: ammonia/syngas, chemical/petrochemicals, clean refining and circular process/circular economy solutions. STS also includes our highly synergistic advisory and consulting practice focused on energy transition and net-zero carbon emission consulting, our high-end engineering, design and professional services offerings, as well as our digitally-enabled remote operating and monitoring solutions. Through early planning and scope definition, advanced technologies and facility life-cycle optimization, our STS business segment works closely with customers to provide what we believe is the optimal approach to maximize their return on investment. Other. Our non-core Other segment includes corporate expenses and selling, general and administrative expenses not allocated to the business segments above. Operations by Reportable Segment Three Months Ended Six Months Ended June 30, June 30, 2022 2021 (1) 2022 2021 (1) Dollars in millions Revenues: Government Solutions $ 1,312 $ 1,231 $ 2,771 $ 2,395 Sustainable Technology Solutions 304 305 559 602 Total revenues $ 1,616 $ 1,536 $ 3,330 $ 2,997 Gross profit: Government Solutions $ 154 $ 130 $ 313 $ 246 Sustainable Technology Solutions 47 77 84 129 Total gross profit $ 201 $ 207 $ 397 $ 375 Equity in earnings (losses) of unconsolidated affiliates: Government Solutions $ 9 $ 8 $ 19 $ 15 Sustainable Technology Solutions 1 (194) (127) (189) Total equity in earnings (losses) of unconsolidated affiliates $ 10 $ (186) $ (108) $ (174) Selling, general and administrative expenses: Government Solutions $ (54) $ (49) $ (108) $ (98) Sustainable Technology Solutions (17) (21) (32) (35) Other (34) (33) (72) (59) Total selling, general and administrative expenses (105) (103) $ (212) $ (192) Acquisition and integration related costs — (3) (1) (4) Gain (loss) on disposition of assets and investments 22 (1) 22 (2) Other (1) (2) (2) (2) Operating income (loss) $ 127 $ (88) $ 96 $ 1 Interest expense (21) (20) (41) (39) Unrealized gain on cost method investment 16 — 16 — Other non-operating income (expense) 5 2 5 (1) Income (loss) before income taxes $ 127 $ (106) $ 76 $ (39) (1) As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Disaggregated Revenue We disaggregate our revenue from customers by business unit, geographic destination and contract type for each of our segments as we believe it best depicts how the nature, amount, timing and uncertainty of our revenue and cash flows are affected by economic factors. Revenue by business unit and reportable segment was as follows: Three Months Ended Six Months Ended June 30, June 30, Dollars in millions 2022 2021 2022 2021 Government Solutions Science & Space $ 257 $ 261 $ 510 $ 508 Defense & Intel 388 395 766 746 Readiness & Sustainment 371 315 904 644 International 296 260 591 497 Total Government Solutions 1,312 1,231 2,771 2,395 Sustainable Technology Solutions 304 305 559 602 Total revenue $ 1,616 $ 1,536 $ 3,330 $ 2,997 Government Solutions revenue earned from key U.S. government customers includes U.S. DoD agencies and NASA, and is reported as Science & Space, Defense & Intel and Readiness & Sustainment. Government Solutions revenue earned from non-U.S. government customers primarily includes the U.K. MoD and the Australian Defence Force and is reported as International. Revenue by geographic destination was as follows: Three Months Ended June 30, 2022 Total by Countries/Regions Dollars in millions Government Solutions Sustainable Technology Solutions Total United States $ 770 $ 128 $ 898 Middle East 51 53 104 Europe 342 54 396 Australia 111 11 122 Africa 22 16 38 Asia 3 28 31 Other countries 13 14 27 Total revenue $ 1,312 $ 304 $ 1,616 Three Months Ended June 30, 2021 Total by Countries/Regions Dollars in millions Government Solutions Sustainable Technology Solutions Total United States $ 804 $ 109 $ 913 Middle East 143 54 197 Europe 161 61 222 Australia 90 — 90 Africa 19 24 43 Asia 1 51 52 Other countries 13 6 19 Total revenue $ 1,231 $ 305 $ 1,536 Six Months Ended June 30, 2022 Total by Countries/Regions Dollars in millions Government Solutions Sustainable Technology Solutions Total United States $ 1,781 $ 237 $ 2,018 Middle East 90 102 192 Europe 625 86 711 Australia 201 11 212 Africa 40 33 73 Asia 6 70 76 Other countries 28 20 48 Total revenue $ 2,771 $ 559 $ 3,330 Six Months Ended June 30, 2021 Total by Countries/Regions Dollars in millions Government Solutions Sustainable Technology Solutions Total United States $ 1,553 $ 222 $ 1,775 Middle East 276 98 374 Europe 334 105 439 Australia 167 4 171 Africa 38 44 82 Asia 1 102 103 Other countries 26 27 53 Total revenue $ 2,395 $ 602 $ 2,997 Many of our contracts contain cost reimbursable, time-and-materials and fixed price components. We define contract type based on the component that represents the majority of the contract. Revenue by contract type was as follows: Three Months Ended June 30, 2022 Dollars in millions Government Solutions Sustainable Technology Solutions Total Cost Reimbursable $ 788 $ — $ 788 Time-and-Materials 246 199 445 Fixed Price 278 105 383 Total revenue $ 1,312 $ 304 $ 1,616 Three Months Ended June 30, 2021 Dollars in millions Government Solutions Sustainable Technology Solutions Total Cost Reimbursable $ 728 $ — $ 728 Time-and-Materials 226 187 413 Fixed Price 277 118 395 Total revenue $ 1,231 $ 305 $ 1,536 Six Months Ended June 30, 2022 Dollars in millions Government Solutions Sustainable Technology Solutions Total Cost Reimbursable $ 1,743 $ — $ 1,743 Time-and-Materials 481 374 855 Fixed Price 547 185 732 Total revenue $ 2,771 $ 559 $ 3,330 Six Months Ended June 30, 2021 Dollars in millions Government Solutions Sustainable Technology Solutions Total Cost Reimbursable $ 1,417 $ — $ 1,417 Time-and-Materials 438 377 815 Fixed Price 540 225 765 Total revenue $ 2,395 $ 602 $ 2,997 Performance Obligations and Contract Liabilities Changes in estimates are recognized on a cumulative catch-up basis in the current period associated with performance obligations satisfied in a prior period due to the release of a constrained milestone, modification in contract price or scope or a change in the likelihood of a contingency being resolved. We recognized revenue from performance obligations satisfied in previous periods of $37 million for the three months ended June 30, 2022, and $42 million and $18 million for the six months ended June 30, 2022 and 2021, respectively. On June 30, 2022, we had $11.2 billion of transaction price allocated to remaining performance obligations. We expect to recognize approximately 37% of our remaining performance obligations as revenue within one year, 36% in years two through five and 27% thereafter. Revenue associated with our remaining performance obligations to be recognized beyond one year includes performance obligations primarily related to the Aspire Defence project, which has contract terms extending through 2041. Remaining performance obligations do not include variable consideration that was determined to be constrained as of June 30, 2022. We recognized revenue of $142 million and $144 million for the six months ended June 30, 2022 and 2021, respectively, which was previously included in the contract liability balance at the beginning of each period. Accounts Receivable June 30, December 31, Dollars in millions 2022 2021 Unbilled $ 483 $ 698 Trade & other 550 713 Accounts receivable $ 1,033 $ 1,411

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2022
Business Combination and Asset Acquisition [Abstract]
Acquisitions	Acquisitions VIMA Group On August 2, 2022, we acquired VIMA Group, a U.K. based leading provider of digital transformation solutions to defense and other public sector clients. The agreed-upon purchase price for the acquisition was approximately $73 million funded from cash on hand, subject to certain working capital and other closing adjustments, $5 million of deferred consideration and potential additional cash payments aggregating up to approximately $12 million, contingent upon the achievement of certain performance targets. All amounts are subject to prevailing exchanges rates at the time of payment as they are required to be paid in the British pound sterling. VIMA Group delivers solutions across a number of large-scale, high priority digital transformation programs to support its clients in ensuring availability of effective digital and information technology as guided by the U.K.'s Digital Strategy for Defence. The company is a trusted advisor and a top five supplier to Defence Digital and Navy Digital – both organizations within the U.K. Ministry of Defence with a number of highly strategic, fast-growing programs. Due to the recent closing of this acquisition, certain financial information related to this acquisition including the fair value of total consideration transferred or estimated to be transferred, is not yet available. Frazer-Nash Consultancy Limited On October 20, 2021, we acquired Frazer-Nash in accordance with an agreement with Babcock International Group PLC, a leading U.K. based provider of specialist systems, engineering and technology solutions. The aggregate consideration paid was approximately $392 million in cash, subject to other post-closing adjustments. As of June 30, 2022, the estimated fair values of net assets acquired were preliminary, with possible updates primarily in our finalization of tax returns. The Company recognized goodwill of approximately $293 million primarily related to future growth opportunities based on an expanded service offering from intellectual capital and a highly skilled assembled workforce and other expected synergies from the combined operations. Intangible assets of $89 million were recognized and comprised of customer relationships and backlog, which will be amortized over a weighted-average period of 14 years. For U.S. tax purposes, the transaction is treated as a stock deal. As a result, there is no step-up in tax basis in the individual assets and liabilities acquired and the goodwill recognized is not deductible for tax purposes. The following supplemental pro forma, combined financial information has been prepared from historical financial statements that have been adjusted to give effect to the acquisition of Frazer-Nash as though it had been acquired on January 1, 2021. Pro forma adjustments were primarily related to the amortization of intangibles, interest on borrowings related to the acquisition, significant nonrecurring transactions and acquisition related transaction costs. Accordingly, this supplemental pro forma financial information is presented for informational purposes only and is not necessarily indicative of what the actual results of operations of the combined company would have been had the acquisition occurred on January 1, 2021, nor is it indicative of future results of operations. Three Months Ended Six Months Ended Dollars in millions June 30, 2021 June 30, 2021 (Unaudited) (Unaudited) Revenue $ 1,574 $ 3,080 Net income attributable to KBR $ (146) $ (94) Diluted earnings per share $ (1.04) $ (0.67)

Cash and Cash Equivalents

Cash and Cash Equivalents	6 Months Ended
	Jun. 30, 2022
Cash and Cash Equivalents [Abstract]
Cash and Cash Equivalents	Cash and Cash EquivalentsWe consider all highly liquid investments with an original maturity of three months or less to be cash equivalents. Cash and cash equivalents include cash balances held by our wholly owned subsidiaries as well as cash held by joint ventures that we consolidate. Joint venture and the Aspire project cash balances are limited to specific project activities and are not available for other projects, general cash needs or distribution to us without approval of the board of directors of the respective entities. We expect to use this cash for project costs and distributions of earnings. The components of our cash and cash equivalents balance are as follows: June 30, 2022 Dollars in millions International (a) Domestic (b) Total Operating cash and cash equivalents $ 228 $ 8 $ 236 Short-term investments (c) 7 158 165 Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities 115 — 115 Total $ 350 $ 166 $ 516 December 31, 2021 Dollars in millions International (a) Domestic (b) Total Operating cash and cash equivalents $ 218 $ 34 $ 252 Short-term investments (c) 2 — 2 Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities 116 — 116 Total $ 336 $ 34 $ 370 (a) Includes deposits held by non-U.S. entities with operating accounts that constitute offshore cash for tax purposes. (b) Includes U.S. dollar and foreign currency deposits held in U.S. entities with operating accounts that constitute onshore cash for tax purposes but may reside either in the U.S. or in a foreign country. (c) Includes time deposits, money market funds and other highly liquid short-term investments.

Unapproved Change Orders and Cl

Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors	6 Months Ended
	Jun. 30, 2022
Contractors [Abstract]
Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors	Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors The amounts of unapproved change orders, and claims against clients and estimated recoveries of claims against suppliers and subcontractors included in determining the profit or loss on contracts are as follows: Dollars in millions June 30, 2022 June 30, 2021 Amounts included in project estimates-at-completion at January 1, $ 426 $ 1,048 Decrease in project estimates (114) (228) Approved change orders (271) (11) Foreign currency impact 7 (1) Amounts included in project estimates-at-completion at June 30, $ 48 $ 808 The balance as of June 30, 2022 primarily relates to projects in our Government Solutions segment. Ichthys LNG Project We have a 30% ownership interest in the JKC joint venture ("JKC"), which was contracted to perform the engineering, procurement, supply, construction and commissioning of onshore LNG facilities for a client in Darwin, Australia (the "Ichthys LNG Project"). The construction and commissioning of the Ichthys LNG Project is complete, and the facility has been handed over to the client and is producing LNG. Settlement Agreement with the Client In October 2021, JKC entered into a binding settlement agreement (the “Settlement Agreement”) that resolved the outstanding claims and disputes between JKC and its client, Ichthys LNG Pty, Ltd (collectively, “the Parties”). As a result of the Settlement Agreement, the Parties agreed to withdraw all claims and terminate all ongoing arbitration and court proceedings between the Parties. As part of the Settlement Agreement, KBR’s letters of credit were also reduced to $82 million from $164 million. Paint and Insulation Claims Against Insurer and Paint Manufacturer There has been deterioration of paint and insulation on certain exterior areas of the plant. As part of the Settlement Agreement, the Parties agreed to consult in good faith and to cooperate to seek maximum recovery from the insurance policies and paint manufacturer for the paint and insulation matters. The Parties agreed to collectively pursue claims against the paint manufacturer and JKC has assigned claims under the insurance policy regarding the paint and insulation matters to the client. Under the Settlement Agreement, the parties have agreed that if, at the date of final resolution of the above proceedings and claims with respect to the paint and insulation matters, the recovered amount from the paint manufacturer and insurance claim is less than the stipulated ceiling amount in the Settlement Agreement, JKC will pay the client the difference between the stipulated ceiling amount and the recovered amount. JKC has provided for and continues to maintain a provision for this contingent liability. Settlement Agreement with the Combined Cycle Power Plant Subcontractor Consortium Pursuant to JKC's fixed-price scope of its contract with its client, JKC awarded a fixed-price EPC contract to a subcontractor for the design, construction and commissioning of the Combined Cycle Power Plant (the "Power Plant"). The subcontractor was a consortium consisting of General Electric and GE Electrical International Inc. and a joint venture between UGL Infrastructure Pty Limited and CH2M Hill (collectively, the "Consortium"). On January 25, 2017, JKC received a Notice of Termination from the Consortium, and the Consortium ceased work on the Power Plant and abandoned the construction site. JKC pursued recourse against the Consortium to recover all of the costs to complete the Power Plant, plus the additional interest and/or general damages. In April 2022, JKC entered into a settlement agreement (the “Subcontractor Settlement Agreement”) to resolve outstanding claims and disputes between JKC and the Consortium. As a result of the Subcontractor Settlement Agreement, KBR expects to receive approximately AUD 360 million of cash in two payments for its proportionate share of the settlement amount. The first payment of AUD 270 million was paid to JKC in April 2022. In May 2022, JKC distributed the payment to KBR at current exchange rates and net of legal expenses resulting in the receipt of approximately $190 million. The second payment for approximately AUD 90 million is expected to be paid to JKC in March 2023. KBR recorded a non-cash charge to equity in earnings (losses) of unconsolidated affiliates in the amount of $137 million during the first quarter of 2022, which reflected KBR’s proportionate share of JKC's claims against the Consortium. See Note 8 "Equity Method Investments and Variable Interest Entities" to our condensed consolidated financial statements for further discussion regarding our equity method investment in JKC. Changes in Project-related Estimates There are many factors that may affect the accuracy of our cost estimates and ultimately our future profitability. These include, but are not limited to, the availability and costs of resources (such as labor, materials and equipment), productivity, weather and ongoing resolution of legacy projects and legal matters. We generally realize both lower and higher than expected margins on projects in any given period. We recognize revisions of revenues and costs in the period in which the revisions are known. This may result in the recognition of costs before the recognition of related revenue recovery, if any. During the six months ended June 30, 2022 within our STS business segment, we recognized a non-cash charge to equity in earnings of unconsolidated affiliates of $137 million as a result of changes in estimates on the Ichthys LNG Project in connection with the Subcontractor Settlement Agreement discussed above. Sanctions and trade control measures were implemented against Russia due to the ongoing conflict between Russia and Ukraine. This impacts our ability to operate in the region and we are winding down our business operations in Russia. As we wind down, we are settling or ending contract relationships with suppliers and personnel and have included the estimates of such activities within our remaining project estimates. These estimates may change as we continue to assess revisions to these estimates when known. The duration and extent to which the trade sanctions against Russia affect our business will depend on future developments that remain uncertain. During the six months ended June 30, 2022, we recognized an unfavorable change of $22 million in gross profit and incurred $6 million in severance and asset impairments costs associated with exiting commercial projects in Russia. During the six months ended June 30, 2022 within our GS business segment, we recognized an unfavorable change in revenue and gross profit of $9 million associated with changes in estimates related to ongoing contract negotiations.

Restructuring Charges

Restructuring Charges	6 Months Ended
	Jun. 30, 2022
Restructuring and Related Activities [Abstract]
Restructuring Charges	Restructuring ChargesDuring 2020, our management initiated and approved a broad restructuring plan in response to the dislocation of the global energy market resulting from the decline in oil prices and the COVID-19 pandemic. As part of the plan, management approved strategic business restructuring activities and decided to discontinue pursuing certain projects, principally lump-sum EPC and commoditized construction services. The restructuring plan was designed to refine our market focus, optimize costs and improve operational efficiencies. The restructuring charges were substantially completed in the year ended December 31, 2020. The restructuring liability at June 30, 2022 was $58 million, of which $14 million is included in other current liabilities and $44 million is included in other liabilities. The restructuring liability at December 31, 2021 was $66 million, of which $17 million is included in other current liabilities and $49 million is included in other liabilities.

Equity Method Investments and V

Equity Method Investments and Variable Interest Entities	6 Months Ended
	Jun. 30, 2022
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments and Variable Interest Entities	Equity Method Investments and Variable Interest Entities We conduct some of our operations through joint ventures, which operate through partnerships, corporations and undivided interests and other business forms and are principally accounted for using the equity method of accounting. Additionally, the majority of our joint ventures are VIEs. The following table presents a rollforward of our equity in and advances to unconsolidated affiliates: Six Months Ended June 30, Year Ended December 31, 2022 2021 Dollars in millions Beginning balance at January 1, $ 576 $ 881 Equity in earnings (losses) of unconsolidated affiliates (108) (170) Distributions of earnings of unconsolidated affiliates (a) (18) (72) Payments from unconsolidated affiliates, net (8) (17) (Return of) investments in equity method investment, net (b) (189) 29 Sale of equity method investment (c) (41) (39) Foreign currency translation adjustments (13) (10) Other (d) — (26) Ending balance $ 199 $ 576 (a) The Brown & Root Industrial Services joint venture declared a distribution in the fourth quarter of 2021 that was paid to KBR during the six months ended June 30, 2022. (b) For the six months ended June 30, 2022, we received a return of investment from JKC of approximately $190 million related to the Subcontractor Settlement Agreement, offset by $1 million in funding contributions to JKC. For the year ended December 31, 2021, investments include $26 million in funding contributions to JKC. (c) During the first quarter of 2022, we sold two of our four U.K. Road projects. The carrying value of our investment was $22 million. We received $18 million in cash proceeds and the purchaser agreed to assume the $4 million of consortium relief. In the second quarter of 2022, we sold an additional U.K. Road project with a carry value of $19 million and recorded a gain of approximately $16 million upon receipt of $35 million in cash proceeds, in addition to receipt of $2 million of deferred consideration from the Q1 2022 sales. During the third quarter of 2021, we sold our investment interest in the Middle East Petroleum Corporation (EBIC Ammonia project). The carrying value of our investment was $39 million. We received $43 million in cash proceeds and recorded a gain of $4 million, of which $1 million was attributable to our non-controlling interests. Subsequent to the receipt of the cash proceeds, we distributed the non-controlling interests' proportionate share of $15 million. (d) During the year ended December 31, 2021, Other included unearned income related to the Ichthys LNG Project, which was previously recorded outside of the equity method investment balance and will not be realized as a result of the settlement proceedings. See Note 6 "Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors" for additional information. Related Party Transactions We often provide engineering, construction management and other subcontractor services to our unconsolidated joint ventures and our revenues include amounts related to these services. For the six months ended June 30, 2022 and 2021, our revenues included $200 million and $194 million, respectively, related to the services we provided primarily to the Aspire Defence Limited joint venture within our GS business segment and a joint venture within our STS business segment. Amounts included in our condensed consolidated balance sheets related to services we provided to our unconsolidated joint ventures as of June 30, 2022, and December 31, 2021 are as follows: June 30, December 31, Dollars in millions 2022 2021 Accounts receivable, net of allowance for credit losses $ 56 $ 35 Contract assets $ 2 $ 2 Other current assets $ — $ 25 Contract liabilities $ 30 $ 5

Retirement Benefits

Retirement Benefits	6 Months Ended
	Jun. 30, 2022
Retirement Benefits [Abstract]
Retirement Benefits	Retirement Benefits The components of net periodic pension benefit related to pension benefits for the six months ended June 30, 2022 and 2021 were as follows: Three Months Ended June 30, 2022 2021 Dollars in millions United States Int’l United States Int’l Components of net periodic pension benefit Service cost $ — $ 1 $ — $ — Interest cost $ — $ 9 $ 1 $ 8 Expected return on plan assets (1) (21) (1) (22) Amortization of prior service cost — — — 1 Recognized actuarial loss 1 6 — 8 Net periodic pension benefit $ — $ (5) $ — $ (5) Six Months Ended June 30, 2022 2021 Dollars in millions United States Int’l United States Int’l Components of net periodic pension benefit Service cost $ — $ 1 $ — $ — Interest cost $ 1 $ 18 $ 1 $ 16 Expected return on plan assets (2) (43) (2) (43) Amortization of prior service cost — — — 1 Recognized actuarial loss 1 12 1 16 Net periodic pension benefit $ — $ (12) $ — $ (10)

Debt and Other Credit Facilitie

Debt and Other Credit Facilities	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Debt and Other Credit Facilities	Debt and Other Credit Facilities Our outstanding debt consisted of the following at the dates indicated: Dollars in millions June 30, 2022 December 31, 2021 (1) Term Loan A $ 415 $ 441 Term Loan B 508 511 Convertible Senior Notes 350 350 Senior Notes 250 250 Senior Credit Facility 260 364 Unamortized debt issuance costs - Term Loan A (3) (4) Unamortized debt issuance costs and discount - Term Loan B (12) (13) Unamortized debt issuance costs and discount - Convertible Senior Notes (2) (4) Unamortized debt issuance costs and discount - Senior Notes (4) (4) Total debt 1,762 1,891 Less: current portion 16 16 Total long-term debt, net of current portion $ 1,746 $ 1,875 (1) As adjusted for the adoption of ASU 2020-06 using the full retrospective method. Senior Credit Facility On November 18, 2021, we entered into Amendment No. 5 under our existing Credit Agreement, dated as of April 25, 2018 ("Pro Rata Facilities"), consisting of a $1 billion revolving credit facility (the "Revolver"), a $442 million Term Loan A, ("Term Loan A") with debt tranches denominated in US dollars, Australian dollars and British pound sterling and a $512 million Term Loan B ("Term Loan B"), with an aggregate capacity of $1.954 billion ("Senior Credit Facility"). The Amendment, among other things, (i) established an additional tranche of £122.1 million in Term Loan A incurred by Kellogg Brown & Root Limited, a wholly owned indirect subsidiary of KBR, Inc., organized under the laws of England and Wales, (ii) increased capacity and flexibility under certain negative covenants, (iii) permits the netting of unrestricted cash up to a specified cap for purposes of calculating the leverage ratio and (iv) reduced the interest rate payable for applicable margins and commitment fees and extended the maturity dates to November 2026 for Term Loan A and the Revolver. The maturity date of Term Loan B remained unchanged maturing February 2027. On May 17, 2022, we entered into Amendment No. 6 under our existing Credit Agreement, dated as of April 25, 2018, to (i) remove certain provisions requiring that the net cash proceeds received from the Subcontractor Settlement Agreement be applied to prepay principal amounts owed under Term Loan A and (ii) amend a certain provision to permit KBR to apply such net cash proceeds for working capital and other general corporate purposes. See Note 6 "Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors" for additional information regarding the Subcontractor Settlement Agreement. The interest rates with respect to the Revolver and Term Loan A are based on, at the Company's option, the respective adjusted reference rate plus an additional margin or base rate plus additional margin. The interest rate with respect to the Term Loan B is LIBOR plus 2.75%. Additionally, there is a commitment fee with respect to the Revolver. The details of the applicable margins and commitment fees under the amended Senior Credit Facility are based on the Company's consolidated net leverage ratio as follows: Revolver and Term Loan A Consolidated Net Leverage Ratio Reference Rate (a) Base Rate Commitment Fee Greater than or equal to 4.25 to 1.00 2.25 % 1.25 % 0.33 % Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 2.00 % 1.00 % 0.30 % Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 1.75 % 0.75 % 0.28 % Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 1.50 % 0.50 % 0.25 % Less than 1.25 to 1.00 1.25 % 0.25 % 0.23 % (a) The reference rate for the Revolver and the U.S. dollar tranche is LIBOR, the Australian dollar tranche is BBSY and the British pound sterling tranche is SONIA. Term Loan A provides for quarterly principal payments of 0.625% of the aggregate principal amount that commenced with the fiscal quarter ended March 31, 2022, increasing to 1.25% starting with the quarter ending March 31, 2024. Term Loan B provides for quarterly principal payments of 0.25% of the initial aggregate principal amounts commencing with the fiscal quarter ending June 30, 2020. The Senior Credit Facility contains financial covenants of a maximum consolidated net leverage ratio and a consolidated interest coverage ratio (as such terms are defined in the Senior Credit Facility). Our consolidated net leverage ratio as of the last day of any fiscal quarter may not exceed 4.50 to 1 through 2022, reducing to 4.25 to 1 in 2023 and 4.00 to 1 in 2024 and thereafter. Our consolidated interest coverage ratio may not be less than 3.00 to 1 as of the last day of any fiscal quarter. As of June 30, 2022, we were in compliance with our financial covenants related to our debt agreements. Convertible Senior Notes Convertible Senior Notes. On November 15, 2018, we issued and sold $350 million of 2.50% Convertible Senior Notes due 2023 (the "Convertible Notes") pursuant to an indenture between us and Citibank, N.A., as trustee. The Convertible Notes are senior unsecured obligations and bear interest at 2.50% per year, and interest is payable on May 1 and November 1 of each year. The Convertible Notes mature on November 1, 2023, and may not be redeemed by us prior to maturity. The Convertible Notes are convertible into cash, shares of our common stock or a combination of cash and shares of our common stock, at our election. It is our current intent to settle the principal balance of the Convertible Notes in cash and any excess value upon conversion in cash, shares of our common stock or a combination of both at our election. The initial conversion price of the Convertible Notes was approximately $25.51 (subject to adjustment in certain circumstances), based on the initial conversion rate of 39.1961 Common Shares per $1,000 principal amount of Convertible Notes. Prior to May 1, 2023, the Convertible Notes will be convertible only upon the occurrence of certain events and during certain periods, and thereafter, until the close of business on the second scheduled trading day immediately preceding the maturity date. On May 19, 2022, we declared a quarterly cash dividend of $0.12 per Common Share, which exceeded our per share dividend threshold and adjusted the conversion rate to 39.5139 at a strike price of $25.31. Convertible Notes Call Spread Overlay. Concurrent with the issuance of the Convertible Notes, we entered into privately negotiated convertible note hedge transactions (the "Note Hedge Transactions") and warrant transactions (the "Warrant Transactions") with the option counterparties. These transactions represent a call spread overlay, whereby the cost of the Note Hedge Transactions we purchased to cover the cash outlay upon conversion of the Convertible Notes was reduced by the sales price of the Warrant Transactions. Each of these transactions is described below. The Note Hedge Transactions cost an aggregate of $62 million and are expected generally to reduce the potential dilution of common stock and/or offset the cash payments we are required to make in excess of the principal amount upon conversion of the Convertible Notes in the event that the market price of our common stock is greater than the strike price of the Note Hedge Transactions, which was initially $25.51 (subject to adjustment), corresponding approximately to the initial conversion price of the Convertible Notes. The Note Hedge Transactions were accounted for by recording the cost as a reduction to PIC based on the Note Hedge Transactions meeting certain scope exceptions provided under ASC Topic 815. We received proceeds of $22 million for the Warrant Transactions, in which we sold net-share-settled warrants to the option counterparties in an amount equal to the number of shares of our common stock initially underlying the Convertible Notes, subject to customary anti-dilution adjustments. The original strike price of the warrants was $40.02 per share. The updated strike price as of June 30, 2022 was $39.70. The Warrant Transactions have been accounted for by recording the proceeds received as PIC. The Note Hedge Transactions and the Warrant Transactions are separate transactions, in each case entered into by us with the option counterparties, and are not part of the terms of the Convertible Notes and will not affect any holder's rights under the Convertible Notes. As of June 30, 2022, the if-converted value of the Convertible Notes based on the closing share price exceeded the $350 million principal amount by approximately $319 million. The incremental value over the principal amount would be fully offset by the shares we are allowed to purchase under the Note Hedge Transaction. However, the counterparties holding the warrants would have the right to purchase the same number of shares we would receive at a strike price of $39.70 resulting in value of $120 million that would have been delivered to the counterparties as of June 30, 2022. Senior Notes On September 30, 2020, we issued and sold $250 million aggregate principal amount of 4.750% Senior Notes due 2028 (the "Senior Notes") pursuant to an indenture among us, the guarantors party thereto and Citibank, N.A., as trustee. The Senior Notes are senior unsecured obligations and are fully and unconditionally guaranteed by each of our existing and future domestic subsidiaries that guarantee our obligations under the Senior Credit Facility and certain other indebtedness. The net proceeds from the offering were approximately $245 million, after deducting fees and estimated offering expenses and were used to finance a portion of the purchase price for the acquisition of Centauri and pay related fees and expenses. Interest is payable semi-annually in arrears on March 30 and September 30 of each year, beginning on March 30, 2021, and the principal is due on September 30, 2028. At any time prior to September 30, 2023, we may redeem all or part of the Senior Notes at a redemption price equal to 100% of the principal amount of the Senior Notes redeemed, plus accrued and unpaid interest, if any, to (but not including) the redemption date, plus a specified “make-whole premium.” On or after September 30, 2023, we may redeem all or part of the Senior Notes at our option, at the redemption prices set forth in the Senior Notes, plus accrued and unpaid interest, if any, to (but not including) the redemption date. At any time prior to September 30, 2023, we may redeem up to 35% of the original aggregate principal amount of the Senior Notes with the net cash proceeds of certain equity offerings at a redemption price equal to 104.750% of the principal amount of the Senior Notes, together with accrued and unpaid interest, if any, to (but not including) the redemption date. If we undergo a change of control, we may be required to make an offer to holders of the Senior Notes to repurchase all of the Senior Notes at a purchase price equal to 101% of the principal amount thereof, plus accrued and unpaid interest. Letters of credit, surety bonds and guarantees In connection with certain projects, we are required to provide letters of credit, surety bonds or guarantees to our customers in the ordinary course of business as credit support for contractual performance guarantees, advanced payments received from customers and future funding commitments. As of June 30, 2022, we had $1 billion in a committed line of credit under the Senior Credit Facility and $450 million of bilateral and uncommitted lines of credit to support the issuance of letters of credit. As of June 30, 2022, with respect to our Senior Credit Facility, we had $260 million of outstanding borrowings previously issued to fund the acquisition of Centauri and $49 million of outstanding letters of credit. With respect to our $450 million of bilateral and uncommitted lines of credit, we utilized $242 million for letters of credit as of June 30, 2022. The total remaining capacity of these committed and uncommitted lines of credit was approximately $900 million. Of the letters of credit outstanding under the Senior Credit Facility, none have expiry dates beyond the maturity date of the Senior Credit Facility. Of the total letters of credit outstanding under our bilateral facilities, $85 million relate to our joint venture operations where the letters of credit are posted using our capacity to support our pro-rata share of obligations under various contracts executed by joint ventures of which we are a member. Nonrecourse Project Debt Fasttrax Limited, a consolidated joint venture in which we indirectly own a 50% equity interest with an unrelated partner, was awarded a concession contract in 2001 with the U.K. MoD to provide a Heavy Equipment Transporter Service to the British Army. Fasttrax Limited operates and maintains 91 HETs for a term of 22 years. The purchase of the HETs by the joint venture was financed through two series of bonds secured by the assets of Fasttrax Limited and subordinated debt from the joint venture partners. The secured bonds are an obligation of Fasttrax Limited and are not a debt obligation of KBR as they are nonrecourse to the joint venture partners. Accordingly, in the event of a default on the notes, the lenders may only look to the assets of Fasttrax Limited for repayment. The secured bonds were issued in two classes consisting of Class A 3.5% Index Linked Bonds in the amount of £56.0 million and Class B 5.9% Fixed Rate Bonds in the amount of £20.7 million. Semi-annual payments on both classes of bonds continued through maturity in March 2021. The subordinated notes payable to each of the partners initially bear interest at 11.25% increasing to 16.00% over the term of the notes until maturity in 2025. For financial reporting purposes, only our partner's portion of the subordinated notes appears in the condensed consolidated financial statements.

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The effective tax rate was approximately 68% and (146)% for the six months ended June 30, 2022 and 2021, respectively. The effective tax rate for the six months ended June 30, 2022 and 2021, as compared to the U.S. statutory rate of 21%, was primarily impacted by adjustments on the Ichthys LNG project to which KBR is a JV partner. KBR did not receive a tax benefit for these adjustments. Excluding the tax impact of these items, our tax rate would be 25% for the six months ended June 30, 2022 and June 30, 2021. Our estimated annual effective rate for 2022 is 25% excluding the effects of discrete items. Our estimated annual effective rate is subject to change based on the actual jurisdictions where our 2022 earnings are generated. The valuation allowance for deferred tax assets as of June 30, 2022 and December 31, 2021 was $199 million and $204 million, respectively. The remaining valuation allowance is primarily related to foreign tax credit carryforwards and foreign and state net operating loss carryforwards that, in the judgment of management, are not more likely than not to be realized. The ultimate realization of deferred tax assets is dependent on the generation of future taxable income, in the appropriate character and source, during the periods in which those temporary differences become deductible or within the remaining carryforward period. Management considers the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carryforward periods), projected future taxable income and tax-planning strategies in making this assessment. The utilization of the unreserved foreign tax credit carryforwards is based on our ability to generate income from foreign sources of approximately $510 million prior to their expiration. The utilization of other net deferred tax assets, excluding those associated with indefinite-lived intangible assets, is based on our ability to generate U.S. forecasted taxable income of approximately $638 million. Changes in our forecasted taxable income, in the appropriate character and source, as well as jurisdiction, could affect the ultimate realization of deferred tax assets. The provision for uncertain tax positions included in other liabilities and deferred income taxes on our condensed consolidated balance sheets as of June 30, 2022 and December 31, 2021 was $86 million and $89 million, respectively.

Commitments And Contingencies

Commitments And Contingencies	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and ContingenciesWe are a party to litigation and other proceedings that arise in the ordinary course of our business, including matters arising under provisions relating to the protection of the environment. These types of matters could result in fines, penalties, cost reimbursements or contributions, compensatory or treble damages or non-monetary sanctions or relief. We believe the probability is remote that the outcome of any individual matter, including the matters described below, will have a material adverse effect on the corporation as a whole, notwithstanding that the unfavorable resolution of any matter may have a material effect on our net earnings and cash flows in any particular reporting period. Among the factors that we consider in this assessment are the nature of existing legal proceedings and claims, the asserted or possible damages or loss contingency (if estimable), the progress of the case, existing law and precedent, the opinions or views of legal counsel and other advisers, our experience in similar cases and the experience of other companies, the facts available to us at the time of assessment and how we intend to respond to the proceeding or claim. Our assessment of these factors may change over time as individual proceedings or claims progress. Although we cannot predict the outcome of legal or other proceedings with certainty, when it is probable that a loss will be incurred and the amount is reasonably estimable, U.S. GAAP requires us to accrue an estimate of the probable loss or range of loss. In the event a loss is probable, but the probable loss is not reasonably estimable, we are required to make a statement that such an estimate cannot be made. We follow a thorough process in which we seek to estimate the reasonably possible loss or range of loss, and only if we are unable to make such an estimate do we conclude and disclose that an estimate cannot be made. Accordingly, unless otherwise indicated below in our discussion, a reasonably possible loss or range of loss associated with any individual contingency cannot be estimated. Chadian Employee Class Action. In May 2018, former employees of our former Chadian subsidiary, Subsahara Services, Inc. ("SSI"), filed a class action suit claiming unpaid damages arising from the ESSO Chad Development Project for Exxon Mobil Corporation ("Exxon") dating back to the early 2000s. Exxon is also named as a defendant in the case. The SSI employees previously filed two class action cases in or around 2005 and 2006 for alleged unpaid overtime and bonuses. The Chadian Labour Court ruled in favor of the SSI employees in the unpaid overtime case resulting in a settlement of approximately $25 million which was reimbursed by Exxon under its contract with SSI. The second case for alleged unpaid bonuses was ultimately dismissed by the Supreme Court of Chad. The current case claims $122 million in unpaid bonuses characterized as damages rather than employee bonuses to avoid the previous Chadian Supreme Court dismissal and a 5-year statute of limitations on wage-related claims. SSI’s initial defense was filed and a hearing was held in December 2018. A merits hearing was held in February 2019. In March 2019, the Labour Court issued a decision awarding the plaintiffs approximately $34 million including a $2 million provisional award. Exxon and SSI have appealed the award and requested suspension of the provisional award, which was approved on April 2, 2019. Exxon and SSI filed a submission to the Court of Appeal on June 21, 2019 and filed briefs at a hearing on February 28, 2020. The plaintiffs failed to file a response on March 13, 2020 and a hearing was scheduled for April 17, 2020. The hearing was postponed due to COVID-19 but took place on September 18, 2020. On October 9, 2020 the appellate court of Moundou awarded the plaintiffs approximately $19 million. SSI filed an appeal of this decision to the Chadian Supreme Court on December 28, 2020. SSI’s request for suspension on the enforceability of the award from the Chadian Supreme Court was granted on January 4, 2021. A hearing took place on December 21, 2021, and while a decision was not issued at the hearing, the Reporting Judge of the Chadian Supreme Court indicated, with regard to the fourth plea concerning the unicity of judicial matters, that this ground alone justified quashing the decision. On February 9, 2022, the Chadian Supreme Court issued an abstract of their forthcoming decision upholding the lower court’s ruling. On June 6, 2022, we received the full decision by the Chadian Supreme Court. We have been informed that Exxon is moving forward with paying the award. Regardless, at this time, based on our assessment of existing law and precedent, the opinions of legal counsel and other advisers, and the facts available to us at the time of assessment, we do not believe a risk of material loss is probable related to this matter. SSI is no longer an existing entity in Chad or the United States. Further, we believe any amounts ultimately paid to the former employees related to this adverse ruling would be paid by Exxon based on the applicable contract and past actions by Exxon with respect to costs and awards related to this matter. North West Rail Link Project. We participate in an unincorporated joint venture with two partners to provide engineering and design services in relation to the operations, trains and systems of a metro rail project in Sydney, Australia. The project commenced in 2014 and during its execution encountered delays and disputes resulting in claims and breach notices submitted to the joint venture by the client. Since November 2018, the client has submitted multiple claims alleging breach of contract and breach of duty by the joint venture in its execution of the services, claiming losses and damages of up to approximately $301 million Australian dollars. KBR has a 33% participation interest in the joint venture and the partners have joint and several liability with respect to all obligations under the contract. We believe the gross amount of the claims significantly exceeds the client’s entitlement as well as the joint venture’s limits of liability under the contract and that the claims will be covered by project-specific professional indemnity insurance subject to deductibles. As of June 30, 2022, we have accrued a probable and reasonably estimable potential loss in an amount that is immaterial. At this time, fact discovery and expert review are still ongoing. The joint venture, joint venture insurers and client continue to be engaged in discussions concerning potential resolution of the claims.

U.S. Government Matters

U.S. Government Matters	6 Months Ended
	Jun. 30, 2022
United States Government Contract Work [Abstract]
U.S. Government Matters	U.S. Government Matters We provide services to various U.S. governmental agencies, including the U.S. DoD, NASA and the Department of State. The negotiation, administration and settlement of our contracts are subject to audit by the DCAA. The DCAA serves in an advisory role to the DCMA, which is responsible for the administration of the majority of our contracts. The scope of these audits includes, among other things, the validity of direct and indirect incurred costs, provisional approval of annual billing rates, approval of annual overhead rates, compliance with the FAR and CAS, compliance with certain unique contract clauses and audits of certain aspects of our internal control systems. Based on the information received to date, we do not believe any completed or ongoing government audits will have a material adverse impact on our results of operations, financial position or cash flows. The U.S. government also retains the right to pursue various remedies under any of these contracts which could result in challenges to expenditures, suspension of payments, fines and suspensions or debarment from future business with the U.S. government. The Company accrued for probable and reasonably estimable unallowable costs associated with open government matters related to our GS business in the amounts of $72 million as of June 30, 2022 and $76 million as of December 31, 2021, which are recorded in other liabilities on our consolidated balance sheets. Legacy U.S. Government Matters Between 2002 and 2011, we provided significant support to the U.S. Army and other U.S. government agencies in support of the war in Iraq under the LogCAP III contract. We have been in the process of closing out the LogCAP III contract since 2011, and we expect the contract closeout process to continue for at least another year. As a result of our work under LogCAP III, there are claims and disputes pending between us and the U.S. government that need to be resolved in order to close the contract. The contract closeout process includes resolving objections raised by the U.S. government through a billing dispute process referred to as Form 1s and MFRs. We continue to work with the U.S. government to resolve these issues and are engaged in efforts to reach mutually acceptable resolutions of these outstanding matters. We also have matters related to ongoing litigation or investigations involving U.S. government contracts. We anticipate billing additional labor, vendor resolution and litigation costs as we resolve the open matters in the future. Investigations, Qui Tams and Litigation The following matters relate to ongoing litigation or federal investigations involving U.S. government contracts. Several of these matters involve allegations of violations of the FCA, which prohibits in general terms fraudulent billings to the U.S. government. Suits brought by private individuals are called "qui tams." In the event we prevail in defending these allegations, a majority of our defense costs will be billable under the LogCAP III contract. All costs billed under LogCAP III are subject to audit by the DCAA for reasonableness. First Kuwaiti Trading Company arbitration. In April 2008, FKTC, one of our LogCAP III subcontractors providing housing containers, filed for arbitration with the American Arbitration Association several claims under various LogCAP III subcontracts. After a series of arbitration proceedings and related litigation between KBR and the U.S. government, the panel heard the final claims this year and we received an award on July 27, 2022, which was previously fully accrued for in our financial statements. This award is subject to a request for modification by either party for 30 days. Howard qui tam. In March 2011, Geoffrey Howard and Zella Hemphill filed a complaint in the U.S. District Court for the Central District of Illinois alleging that KBR mischarged the government $628 million for unnecessary materials and equipment. In October 2014, the DOJ declined to intervene and the case was partially unsealed. Depositions of some DCMA and KBR personnel have taken place and more which were expected to occur in early 2020 were postponed due to COVID-19 but resumed in 2021. KBR and the relators filed various motions including a motion to dismiss by KBR. Although KBR's motion to dismiss was not granted it remains an option on appeal. Fact discovery has been completed and expert discovery is expected to continue through August 2022. We believe the allegations of fraud by the relators are without merit. Based on our assessment of existing law and precedent, the opinions or views of legal counsel and the facts available to us as of June 30, 2022, we are not able to estimate a reasonably possible loss and accordingly, no amounts have been accrued. DOJ False Claims Act complaint - Iraq Subcontractor. In January 2014, the DOJ filed a complaint in the U.S. District Court for the Central District of Illinois against KBR and two former KBR subcontractors, including FKTC, alleging that three former KBR employees were offered and accepted kickbacks from these subcontractors in exchange for favorable treatment in the award and performance of subcontracts to be awarded during the course of KBR's performance of the LogCAP III contract in Iraq. The complaint alleges that as a result of the kickbacks, KBR submitted invoices with inflated or unjustified subcontract prices, resulting in alleged violations of the FCA and the Anti-Kickback Act. The DOJ's investigation dates back to 2004. We

Claims and Accounts Receivable

Claims and Accounts Receivable	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Claims and Accounts Receivable	Claims and Accounts Receivable Our claims and accounts receivable balance not expected to be collected within the next 12 months was $30 million as of June 30, 2022, and December 31, 2021. Claims and accounts receivable primarily reflect claims filed with the U.S. government related to payments not yet received for various U.S. government cost-reimbursable contracts for which our reimbursable costs have exceeded the U.S. government's funded values on the underlying task orders or task orders where the U.S. government has not authorized us to bill. We believe the remaining disputed costs will be resolved in our favor, at which time the U.S. government will be required to obligate funds from appropriations for the year in which resolution occurs.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Loss	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Changes in AOCL, net of tax, by component Dollars in millions Accumulated foreign currency translation adjustments Accumulated pension liability adjustments Changes in fair value of derivatives Total Balance at December 31, 2021 $ (296) $ (581) $ (4) $ (881) Other comprehensive income adjustments before reclassifications (53) — 23 (30) Amounts reclassified from AOCL — 10 5 15 Net other comprehensive income (loss) (53) 10 28 (15) Balance at June 30, 2022 $ (349) $ (571) $ 24 $ (896) Dollars in millions Accumulated foreign currency translation adjustments Accumulated pension liability adjustments Changes in fair value of derivatives Total Balance at December 31, 2020 $ (291) $ (764) $ (28) $ (1,083) Other comprehensive income adjustments before reclassifications 8 — 8 16 Amounts reclassified from AOCL 3 13 6 22 Net other comprehensive income (loss) 11 13 14 38 Balance at June 30, 2021 $ (280) $ (751) $ (14) $ (1,045) Reclassifications out of AOCL, net of tax, by component Six Months Ended June 30, Dollars in millions 2022 2021 Affected line item on the Condensed Consolidated Statements of Operations Accumulated foreign currency adjustments Reclassification of foreign currency adjustments $ — $ (3) Net income attributable to noncontrolling interests and Gain on disposition of assets and investments Tax benefit — — Provision for income taxes Net accumulated foreign currency $ — $ (3) Net of tax Accumulated pension liability adjustments Amortization of actuarial loss (a) $ (13) $ (16) See (a) below Tax benefit 3 3 Provision for income taxes Net pension and post-retirement benefits $ (10) $ (13) Net of tax Changes in fair value for derivatives Foreign currency hedge and interest rate swap settlements $ (6) $ (8) Other non-operating expense Tax benefit 1 2 Provision for income taxes Net changes in fair value of derivatives $ (5) $ (6) Net of tax (a) This item is included in the computation of net periodic pension cost. See Note 9 "Retirement Benefits" to our condensed consolidated financial statements for further discussion.

Share Repurchases

Share Repurchases	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Share Repurchases	Share Repurchases Authorized Share Repurchase Program On February 25, 2014, the Board of Directors authorized a plan to repurchase up to $350 million of our outstanding shares of common stock, which replaced and terminated the August 26, 2011 share repurchase program. As of December 31, 2019, $160 million remained available under this authorization. On February 19, 2020, the Board of Directors authorized an increase of approximately $190 million to our share repurchase program, returning the authorization level to $350 million. As of June 30, 2022, $160 million remains available for repurchase under this authorization. The authorization does not obligate the Company to acquire any particular number of shares of common stock and may be commenced, suspended or discontinued without prior notice. The share repurchases are intended to be funded through the Company's current and future cash flows and the authorization does not have an expiration date. Withheld to Cover Program We have in place a "withheld to cover" program, which allows us to withhold common shares from employees in connection with the settlement of income tax and related benefit withholding obligations arising from the issuance of share-based equity awards under the KBR, Inc. 2006 Stock and Incentive Plan. The table below presents information on our share repurchases activity under these programs: Three Months Ended Six Months Ended June 30, 2022 June 30, 2022 Number of Shares Average Price per Share Dollars in Millions Number of Shares Average Price per Share Dollars in Millions Repurchases under the $350 million authorized share repurchase program 823,333 $ 48.56 $ 40 1,342,665 $ 48.39 $ 65 Withheld to cover shares 11,584 $ 45.31 1 182,523 $ 48.48 $ 9 Total 834,917 $ 48.51 $ 41 1,525,188 $ 48.40 $ 74 Three Months Ended Six Months Ended June 30, 2021 June 30, 2021 Number of Shares Average Price per Share Dollars in Millions Number of Shares Average Price per Share Dollars in Millions Repurchases under the $350 million authorized share repurchase program 681,284 $ 40.89 $ 28 681,284 $ 40.89 $ 28 Withheld to cover shares 11,873 $ 40.97 — 141,249 $ 31.90 $ 4 Total 693,157 $ 40.89 $ 28 822,533 $ 39.35 $ 32

Income (loss) per Share

Income (loss) per Share	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Income (loss) per Share	Income (loss) per Share Basic income (loss) per share is based upon the weighted average number of common shares outstanding during the period. Dilutive income (loss) per share includes additional common shares that would have been outstanding if potential common shares with a dilutive effect had been issued using the if-converted method for Convertible Debt and the treasury stock method for all other instruments. A summary of the basic and diluted net income (loss) per share calculations is as follows: Three Months Ended June 30, Six Months Ended June 30, Shares in millions 2022 2021 (1) 2022 2021 (1) Net income (loss) attributable to KBR: Basic net income (loss) attributable to KBR $ 94 $ (149) $ 23 $ (100) Reversal of Convertible Debt interest expense 1 — $ 3 — Diluted net income (loss) attributable to KBR (a) $ 95 $ (149) $ 26 $ (100) Weighted average common shares outstanding: Basic weighted average common shares outstanding 139 141 139 141 Convertible debt 14 — 14 — Warrants 3 — 3 — Diluted weighted average common shares outstanding (a) 156 141 156 141 Net income (loss) attributable to KBR per share: Basic $0.68 $(1.06) $0.17 $(0.71) Diluted (a) $0.61 $(1.06) $0.17 $(0.71) (1) As adjusted for the adoption of ASU 2020-06 using the full retrospective method. (a) In periods for which we report a net loss attributable to KBR, basic net loss per share and diluted net loss per share are identical as the effect of all potential common shares is anti-dilutive and therefore excluded. Upon our full retrospective adoption of ASU 2020-06 on January 1, 2022, we are required to apply the if-converted method to our Convertible Debt when calculating diluted income (loss) per share. Under the if-converted method, the principal amount and any conversion spread of the Convertible Debt, to the extent dilutive, are assumed to be converted into common stock at the beginning of the period and net income (loss) attributable to KBR is adjusted to reverse the effect of any interest expense associated with the Convertible Debt. For the three and six months ended June 30, 2022, the Convertible Notes impacted the calculation of diluted income (loss) per share as the average price of our common stock in both periods exceeded the adjusted strike price of $25.31. For the three and six months ended June 30, 2021, the Convertible Notes did not impact the calculation of diluted income (loss) per share as they were anti-dilutive. Additionally, for the three and six months ended June 30, 2022, the Warrant Transactions (as defined in Note 10, "Debt and Other Credit Facilities", to our condensed consolidated financial statements) impacted the calculation of diluted income (loss) per share as the average price of our common stock in both periods exceeded the adjusted strike price of $39.70. For the three and six months ended June 30, 2021, the Warrant Transactions did not impact diluted net income (loss) per share as the average price of our common stock in both periods did not exceed the adjusted strike price of $39.82. For purposes of applying the two-class method in computing income (loss) per share, there was $0.4 million and $0.1 million in net earnings allocated to participating securities, or negligible amounts per share, for the three and six months ended June 30, 2022 and no net earnings allocated to participating securities for the three and six months ended June 30, 2021.

Fair Value of Financial Instrum

Fair Value of Financial Instruments and Risk Management	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments and Risk Management	Fair Value of Financial Instruments and Risk Management Fair value measurements. The fair value of an asset or liability is the price that would be received to sell an asset or transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. The Company utilizes a fair value hierarchy that maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value and defines three levels of inputs that may be used to measure fair value. Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Level 2 inputs are inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly, including quoted prices for similar assets or liabilities in active markets, quoted prices in markets that are not active, inputs other than quoted prices that are observable for the asset or liability or inputs derived from observable market data. Level 3 inputs are unobservable inputs that are supported by little or no market activity and are significant to the fair value of the assets or liabilities. The carrying amount of cash and cash equivalents, accounts receivable and accounts payable, as reflected in the condensed consolidated balance sheets, approximates fair value due to the short-term maturities of these financial instruments. The carrying values and estimated fair values of our financial instruments that are not required to be recorded at fair value in our condensed consolidated balance sheets are provided in the following table. June 30, 2022 December 31, 2021 Dollars in millions Carrying Value Fair Value Carrying Value Fair Value Liabilities (including current maturities): Term Loan A Level 2 $ 415 $ 415 $ 441 $ 441 Term Loan B Level 2 508 506 511 514 Convertible Notes Level 2 350 669 350 669 Senior Notes Level 2 250 222 250 256 Senior Credit Facility Level 2 ` 260 260 364 364 Nonrecourse project debt Level 2 1 1 2 2 See Note 10 "Debt and Other Credit Facilities" for further discussion of our term loans, convertibles notes and nonrecourse project debt. The following disclosures for foreign currency risk and interest rate risk includes the fair value hierarchy levels for our assets and liabilities that are measured at fair value on a recurring basis. Foreign currency risk. We conduct business globally in numerous currencies and are therefore exposed to foreign currency fluctuations. We may use derivative instruments to reduce the volatility of earnings and cash flows associated with changes in foreign currency exchange rates. We do not use derivative instruments for speculative trading purposes. We generally utilize foreign exchange forwards and currency option contracts to hedge exposures associated with forecasted future cash flows and to hedge exposures present on our balance sheet. As of June 30, 2022, the gross notional value of our foreign currency exchange forwards and option contracts used to hedge balance sheet exposures was $173 million, all of which had durations of 18 days or less. We also had approximately $7 million (gross notional value) of cash flow hedges which had durations of 23 months or less. The cash flow hedges are primarily related to the British Pound. The fair value of our balance sheet and cash flow hedges are included in other current assets and other current liabilities on our condensed consolidated balance sheets at June 30, 2022, and December 31, 2021. The fair values of these derivatives are considered Level 2 under ASC 820, Fair Value Measurement, as they are based on quoted prices directly observable in active markets. The following table summarizes the recognized changes in fair value of our balance sheet hedges offset by remeasurement of balance sheet positions. These amounts are recognized in our condensed consolidated statements of operations for the periods presented. The net of our changes in fair value of hedges and the remeasurement of our assets and liabilities is included in other non-operating income (expense) on our condensed consolidated statements of operations. Three Months Ended Six Months Ended June 30, June 30, Dollars in millions 2022 2021 2022 2021 Balance Sheet Hedges - Fair Value $ 5 $ (1) $ 5 $ (1) Balance Sheet Position - Remeasurement (1) 1 (1) (5) Net gain (loss) $ 4 $ — $ 4 $ (6) Interest rate risk. We use interest rate swaps to reduce interest rate risk and to manage net interest expense by converting our LIBOR based loans into fixed-rate loans. In October 2018, we entered into interest rate swap agreements with a notional value of $500 million, which are effective beginning October 2018 and mature in September 2022. Under the October 2018 swap agreements, we receive one-month LIBOR and pay a monthly fixed rate of 3.055% for the term of the swaps. In March 2020, we entered into additional swap agreements with a notional value of $400 million, which are effective beginning October 2022 and mature in January 2027. Under the March 2020 swap agreements, we will receive one-month LIBOR and pay a monthly fixed rate of 0.965% for the term of the swaps. Our interest rate swaps are reported at fair value using Level 2 inputs. The fair value of the interest rate swaps at June 30, 2022 was a $30 million net asset, of which $24 million is included in other assets, $8 million is included in other current assets and $2 million is included in other current liabilities. The unrealized net gain on these interest rate swaps was $30 million and is included in AOCL as of June 30, 2022. The fair value of the interest rate swaps at December 31, 2021, was a $3 million net liability, of which $10 million is included in other current liabilities and $7 million is included in other assets. The unrealized net losses on these interest rate swaps was $3 million and included in AOCL as of December 31, 2021. Credit Losses. We are exposed to credit losses primarily related to our professional services, project delivery and technologies offered in our STS business segment. We do not consider our GS business segment to be at risk for credit losses because substantially all services within this segment are provided to agencies of the U.S., U.K. and Australian governments. We determined our allowance for credit losses by using a loss-rate methodology, in which we assessed our historical write-off of receivables against our total receivables and contract asset balances over several years. From this historical loss-rate approach, we also considered the current and forecasted economic conditions expected to be in place over the life of our receivables and contract assets. We monitor our ongoing credit exposure through an active review of our customers’ receivables balance against contract terms and due dates. Our activities include timely performance of our accounts receivable reconciliations, assessment of our aging of receivables, dispute resolution and payment confirmation. We also monitor any change in our historical write-off of receivables utilized in our loss-rate methodology and assess for any forecasted change in market conditions to adjust our credit reserve. At June 30, 2022, our STS business segment that is subject to credit risk reported approximately $321 million of financial assets consisting primarily of accounts receivable and contract assets, net of allowance for credit losses of $11 million. Based on an aging analysis at June 30, 2022, 87% of our accounts receivable related to this segment was outstanding for less than 90 days. Sales of Receivables. From time to time, we sell certain receivables to unrelated third-party financial institutions under various accounts receivable monetization programs. One such program is with MUFG Bank, Ltd. (“MUFG”) under a Master Accounts Receivable Purchase Agreement (the “RPA”), which provides the sale to MUFG of certain of our designated eligible receivables, with a significant portion of such receivables being owed by the U.S. government. The receivables sold under the agreements do not allow for recourse for any credit risk related to our customers if such receivables are not collected by the third-party financial institutions. The Company accounts for these receivable transfers as a sale under ASC Topic 860, Transfers and Servicing, as the receivables have been legally isolated from the Company, the financial institution has the right to pledge or exchange the assets received and we do not maintain effective control over the transferred accounts receivable. Our only continuing involvement with the transferred financial assets is as the collection and servicing agent. As a result, the accounts receivable balance on the condensed consolidated balance sheets is presented net of the transferred amount. During the six months ended June 30, 2022, the Company has derecognized $1,782 million of accounts receivables from the balance sheet under these agreements, of which certain receivables totaling $1,762 million were sold under the MUFG RPA. The fair value of the sold receivables approximated their book value due to their short-term nature. The fees incurred are presented in other non-operating income (expense) on the condensed consolidated statements of operations. Activity for third-party financial institutions consisted of the following: Six Months Ended Six Months Ended Dollars in millions June 30, 2022 June 30, 2021 Beginning balance $ 481 112 Sale of receivables 1,782 1,154 Settlement of receivables (2,141) (1,147) Outstanding balances sold to financial institutions $ 122 $ 119 Cost Method Investments. Cost method investments are investments in equity securities of privately held companies without readily determinable fair values and are included in other assets on our condensed consolidated balance sheets. These investments are accounted for under the measurement alternative, provided that KBR does not have the ability to exercise significant influence or control over the investees. We measure the investments at cost, less any impairment, and adjust the carrying value to fair value resulting from observable transactions for identical or similar investments of the same issuer. If it is determined that impairment indicators exist and the carrying value is less than the fair value, we adjust the carrying value of the investment to its fair value and record the related impairment. The gains and losses on the investments are recognized in unrealized gain (loss) on cost method investment on our condensed consolidated statements of operations. In June 2022, we entered into an agreement to invest an additional $100 million in Mura Technology ("Mura"). Funding is expected in two tranches with the first payment made in the quarter ended June 30, 2022. The remainder will take place in the second tranche in 2023, which will then bring KBR's aggregate investment in Mura to 18.5%. As a result of the observable transaction associated with KBR's additional investment and Mura stock purchases from other parties, we recorded an unrealized gain of $16 million. The carrying value of KBR's investment in Mura was $85 million and $11 million at June 30, 2022 and December 31, 2021, respectively.

Recent Accounting Pronouncement

Recent Accounting Pronouncements	6 Months Ended
	Jun. 30, 2022
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements New accounting pronouncements requiring implementation in future periods are discussed below. In 2017, the United Kingdom's Financial Conduct Authority announced that after 2021 it would no longer compel banks to submit the rates required to calculate the London Interbank Offered Rate (LIBOR), which have been widely used as reference rates for various securities and financial contracts, including loans, debts and derivatives. This announcement indicates that the continuation of LIBOR on the current basis is not guaranteed after 2021. Subsequently in March 2021, the Financial Conduct Authority announced some USD LIBOR tenors (overnight, 1-month, 3-month, 6-month and 12-month) will continue to be published until June 30, 2023. Regulators in the U.S. and other jurisdictions have been working to replace these rates with alternative reference interest rates that are supported by transactions in liquid and observable markets, such as the Secured Overnight Financing Rate (SOFR) for USD LIBOR. Currently, our Senior Credit Facility and certain of our derivative instruments reference LIBOR base rates. Our Senior Credit Facility contains provisions to transition into alternative reference rates including calculations to be employed when LIBOR ceases to be available as a benchmark. We have adhered to the ISDA 2020 IBOR Fallbacks Protocol, which will govern our derivatives upon the final termination of USD LIBOR index benchmark. ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, as amended, helps limit the accounting impact from contract modifications, including hedging relationships, due to the transition from LIBOR to alternative reference rates that are completed by December 31, 2022. We do not expect a significant impact to our financial results, financial position or cash flows from the transition from LIBOR to alternative reference rates, but we will continue to monitor the impact of this transition until it is completed. In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires entities to recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 2014-09, Revenue from Contracts with Customers (Topic 606). The update will generally result in an entity recognizing contract assets and contract liabilities at amounts consistent with those recorded by the acquiree immediately before the acquisition date rather than at fair value. The new standard is effective on a prospective basis for fiscal years beginning after December 15, 2022, with early adoption permitted. We are currently evaluating the future impact of adoption of this standard.

Basis of Presentation (Policies

Basis of Presentation (Policies)	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation	Principles of ConsolidationThe accompanying condensed consolidated financial statements have been prepared in accordance with U.S. GAAP and include the accounts of KBR, Inc. and the subsidiaries it controls, including VIEs where it is the primary beneficiary (collectively, the "Company," "KBR", "we", "us" or "our"). We account for investments over which we have significant influence, but not a controlling financial interest, using the equity method of accounting. See Note 8 to our condensed consolidated financial statements for further discussion of our equity investments and VIEs. All material intercompany balances and transactions are eliminated in consolidation.
Impact of Adoption of New Accounting Standards and Recent Accounting Pronouncements	Adoption of ASU 2020-06 Effective January 1, 2022, we adopted ASU No. 2020-06, Accounting for Convertible Instruments and Contracts in an Entity's Own Equity ("ASU 2020-06") using the full retrospective method. Accordingly, the Company is presenting the consolidated financial statements for the year ended December 31, 2021, and the condensed consolidated financial statements for the six months ended June 30, 2021, as if ASU 2020-06 had been effective for those periods. This guidance simplifies the accounting for convertible instruments by reducing the number of accounting models available for convertible debt instruments. As such, we no longer separate the Convertible Senior Notes into liability and equity components. The conversion option that was previously accounted for in equity under the cash conversion model was recombined into the Convertible Senior Notes outstanding, and as a result, PIC and the related unamortized debt discount on the Convertible Senior Notes were reduced. The removal of the remaining debt discount recorded for this previous separation has the effect of increasing our net debt balance. ASU 2020-06 also eliminates the treasury stock method to calculate diluted earnings per share for certain convertible instruments and requires the use of the if-converted method. As such, we are required to apply the if-converted method to our Convertible Senior Notes when calculating diluted income (loss) per share. Under the if-converted method, the principal amount and any conversion spread of the Convertible Senior Notes, to the extent dilutive, are assumed to be converted into common stock at the beginning of the period and net income (loss) attributable to KBR is adjusted to reverse the effect of any interest expense associated with the Convertible Senior Notes. For the years ended December 31, 2021 and 2020, the adoption of this standard did not materially impact our financial performance, financial position or cash flow, but it did result in an increase in the number of diluted weighted average shares outstanding utilized in our diluted income (loss) per share calculation in periods of net income attributable to KBR. For the year ending December 31, 2022, the adoption of this standard will not materially impact our financial performance, financial position or cash flow, but it may result in an increase in the number of diluted weighted average shares outstanding utilized in our diluted income (loss) per share calculation. Impact of Adoption of Other New Accounting Standards Effective January 1, 2022, we adopted ASU No. 2021-04. Earnings Per Share (Topic 260), Debt - Modifications and Extinguishments (Subtopic 470-50), Compensation - Stock Compensation (Topic 718), and Derivatives and Hedging - Contracts in Entity’s Own Equity (Subtopic 815-40): Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options. This ASU provides guidance for a modification or an exchange of a freestanding equity-classified written call option that is not within the scope of another Topic. It specifically addresses measurement, treatment and recognition of a freestanding equity-classified written call option modification or exchange. The adoption of this standard did not have an impact on our financial statements. Effective January 1, 2022, we adopted ASU 2021-10, Government Assistance (Topic 832), Disclosures by Business Entities About Government Assistance, which requires entities to provide disclosures on material government assistance transactions for annual reporting periods. The disclosures include information around the nature of the assistance, the related accounting policies used to account for government assistance, the effect of government assistance on the entity’s financial statements and any significant terms and conditions of the agreements, including commitments and contingencies. The new standard only impacts annual financial statement footnote disclosures. Therefore, the adoption did not have a material effect on our condensed consolidated financial statements. New accounting pronouncements requiring implementation in future periods are discussed below. In 2017, the United Kingdom's Financial Conduct Authority announced that after 2021 it would no longer compel banks to submit the rates required to calculate the London Interbank Offered Rate (LIBOR), which have been widely used as reference rates for various securities and financial contracts, including loans, debts and derivatives. This announcement indicates that the continuation of LIBOR on the current basis is not guaranteed after 2021. Subsequently in March 2021, the Financial Conduct Authority announced some USD LIBOR tenors (overnight, 1-month, 3-month, 6-month and 12-month) will continue to be published until June 30, 2023. Regulators in the U.S. and other jurisdictions have been working to replace these rates with alternative reference interest rates that are supported by transactions in liquid and observable markets, such as the Secured Overnight Financing Rate (SOFR) for USD LIBOR. Currently, our Senior Credit Facility and certain of our derivative instruments reference LIBOR base rates. Our Senior Credit Facility contains provisions to transition into alternative reference rates including calculations to be employed when LIBOR ceases to be available as a benchmark. We have adhered to the ISDA 2020 IBOR Fallbacks Protocol, which will govern our derivatives upon the final termination of USD LIBOR index benchmark. ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, as amended, helps limit the accounting impact from contract modifications, including hedging relationships, due to the transition from LIBOR to alternative reference rates that are completed by December 31, 2022. We do not expect a significant impact to our financial results, financial position or cash flows from the transition from LIBOR to alternative reference rates, but we will continue to monitor the impact of this transition until it is completed. In October 2021, the FASB issued ASU 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers, which requires entities to recognize and measure contract assets and contract liabilities acquired in a business combination in accordance with ASC 2014-09, Revenue from Contracts with Customers (Topic 606). The update will generally result in an entity recognizing contract assets and contract liabilities at amounts consistent with those recorded by the acquiree immediately before the acquisition date rather than at fair value. The new standard is effective on a prospective basis for fiscal years beginning after December 15, 2022, with early adoption permitted. We are currently evaluating the future impact of adoption of this standard.

Basis of Presentation (Tables)

Basis of Presentation (Tables)	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Impact of New Accounting Pronouncements	Select unaudited condensed consolidated balance sheet line items, which reflect the adoption of ASU 2020-06, are as follows: December 31, 2021 Dollars in millions As Previously Reported Adjustments As Adjusted Assets: Deferred income taxes $ 226 $ 5 $ 231 Liabilities: Long-term debt $ 1,852 $ 23 $ 1,875 KBR Shareholders' Equity: PIC $ 2,251 $ (45) $ 2,206 Retained earnings 1,260 27 1,287 Select unaudited condensed consolidated statement of operations line items, which reflect the adoption of ASU 2020-06, are as follows: Three Months Ended June 30, 2021 Dollars in millions As Previously Reported Adjustments As Adjusted Interest Expense $ (23) $ 3 $ (20) Income before income taxes $ (109) $ 3 $ (106) Provision for income taxes $ (40) $ — $ (40) Net income $ (149) $ 3 $ (146) Net income attributable to KBR $ (152) $ 3 $ (149) Net income attributable to KBR per share: Basic $ (1.08) $ 0.02 $ (1.06) Diluted $ (1.08) $ 0.02 $ (1.06) Basic weighted average common shares outstanding $ 141 $ — $ 141 Diluted weighted average common shares outstanding $ 141 $ — $ 141 Six Months Ended June 30, 2021 Dollars in millions As Previously Reported Adjustments As Adjusted Interest Expense $ (45) $ 6 $ (39) Income before income taxes $ (45) $ 6 $ (39) Provision for income taxes $ (56) $ (1) $ (57) Net income $ (101) $ 5 $ (96) Net income attributable to KBR $ (105) $ 5 $ (100) Net income attributable to KBR per share: Basic $ (0.75) $ 0.04 $ (0.71) Diluted $ (0.75) $ 0.04 $ (0.71) Basic weighted average common shares outstanding $ 141 $ — $ 141 Diluted weighted average common shares outstanding $ 141 $ — $ 141 Select unaudited condensed consolidated statement of cash flows line items, which reflect the adoption of ASU 2020-06, are as follows: Six Months Ended June 30, 2021 Dollars in millions As Previously Reported Adjustments As Adjusted Cash flows from operating activities: Net Income $ (101) $ 5 $ (96) Adjustments to reconcile net income to net cash provided by operating activities: Deferred income tax 35 1 36 Other 23 (6) 17 Total cash flows provided by operating activities $ 154 $ — $ 154
Components of other current liabilities on our condensed consolidated balance sheets	The components of other current liabilities on our condensed consolidated balance sheets as of June 30, 2022, and December 31, 2021, are presented below: June 30, December 31, Dollars in millions 2022 2021 Current maturities of long-term debt $ 16 $ 16 Reserve for estimated losses on uncompleted contracts 14 17 Retainage payable 10 13 Restructuring reserve 14 17 Value-added tax payable 37 34 Dividend payable 17 16 Other miscellaneous liabilities 60 65 Total other current liabilities $ 168 $ 178

Business Segment Information (T

Business Segment Information (Tables)	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Schedule of operations by reportable segment	Operations by Reportable Segment Three Months Ended Six Months Ended June 30, June 30, 2022 2021 (1) 2022 2021 (1) Dollars in millions Revenues: Government Solutions $ 1,312 $ 1,231 $ 2,771 $ 2,395 Sustainable Technology Solutions 304 305 559 602 Total revenues $ 1,616 $ 1,536 $ 3,330 $ 2,997 Gross profit: Government Solutions $ 154 $ 130 $ 313 $ 246 Sustainable Technology Solutions 47 77 84 129 Total gross profit $ 201 $ 207 $ 397 $ 375 Equity in earnings (losses) of unconsolidated affiliates: Government Solutions $ 9 $ 8 $ 19 $ 15 Sustainable Technology Solutions 1 (194) (127) (189) Total equity in earnings (losses) of unconsolidated affiliates $ 10 $ (186) $ (108) $ (174) Selling, general and administrative expenses: Government Solutions $ (54) $ (49) $ (108) $ (98) Sustainable Technology Solutions (17) (21) (32) (35) Other (34) (33) (72) (59) Total selling, general and administrative expenses (105) (103) $ (212) $ (192) Acquisition and integration related costs — (3) (1) (4) Gain (loss) on disposition of assets and investments 22 (1) 22 (2) Other (1) (2) (2) (2) Operating income (loss) $ 127 $ (88) $ 96 $ 1 Interest expense (21) (20) (41) (39) Unrealized gain on cost method investment 16 — 16 — Other non-operating income (expense) 5 2 5 (1) Income (loss) before income taxes $ 127 $ (106) $ 76 $ (39) (1) As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Schedule of disaggregation of revenue	Revenue by business unit and reportable segment was as follows: Three Months Ended Six Months Ended June 30, June 30, Dollars in millions 2022 2021 2022 2021 Government Solutions Science & Space $ 257 $ 261 $ 510 $ 508 Defense & Intel 388 395 766 746 Readiness & Sustainment 371 315 904 644 International 296 260 591 497 Total Government Solutions 1,312 1,231 2,771 2,395 Sustainable Technology Solutions 304 305 559 602 Total revenue $ 1,616 $ 1,536 $ 3,330 $ 2,997 Revenue by geographic destination was as follows: Three Months Ended June 30, 2022 Total by Countries/Regions Dollars in millions Government Solutions Sustainable Technology Solutions Total United States $ 770 $ 128 $ 898 Middle East 51 53 104 Europe 342 54 396 Australia 111 11 122 Africa 22 16 38 Asia 3 28 31 Other countries 13 14 27 Total revenue $ 1,312 $ 304 $ 1,616 Three Months Ended June 30, 2021 Total by Countries/Regions Dollars in millions Government Solutions Sustainable Technology Solutions Total United States $ 804 $ 109 $ 913 Middle East 143 54 197 Europe 161 61 222 Australia 90 — 90 Africa 19 24 43 Asia 1 51 52 Other countries 13 6 19 Total revenue $ 1,231 $ 305 $ 1,536 Six Months Ended June 30, 2022 Total by Countries/Regions Dollars in millions Government Solutions Sustainable Technology Solutions Total United States $ 1,781 $ 237 $ 2,018 Middle East 90 102 192 Europe 625 86 711 Australia 201 11 212 Africa 40 33 73 Asia 6 70 76 Other countries 28 20 48 Total revenue $ 2,771 $ 559 $ 3,330 Six Months Ended June 30, 2021 Total by Countries/Regions Dollars in millions Government Solutions Sustainable Technology Solutions Total United States $ 1,553 $ 222 $ 1,775 Middle East 276 98 374 Europe 334 105 439 Australia 167 4 171 Africa 38 44 82 Asia 1 102 103 Other countries 26 27 53 Total revenue $ 2,395 $ 602 $ 2,997 Many of our contracts contain cost reimbursable, time-and-materials and fixed price components. We define contract type based on the component that represents the majority of the contract. Revenue by contract type was as follows: Three Months Ended June 30, 2022 Dollars in millions Government Solutions Sustainable Technology Solutions Total Cost Reimbursable $ 788 $ — $ 788 Time-and-Materials 246 199 445 Fixed Price 278 105 383 Total revenue $ 1,312 $ 304 $ 1,616 Three Months Ended June 30, 2021 Dollars in millions Government Solutions Sustainable Technology Solutions Total Cost Reimbursable $ 728 $ — $ 728 Time-and-Materials 226 187 413 Fixed Price 277 118 395 Total revenue $ 1,231 $ 305 $ 1,536 Six Months Ended June 30, 2022 Dollars in millions Government Solutions Sustainable Technology Solutions Total Cost Reimbursable $ 1,743 $ — $ 1,743 Time-and-Materials 481 374 855 Fixed Price 547 185 732 Total revenue $ 2,771 $ 559 $ 3,330 Six Months Ended June 30, 2021 Dollars in millions Government Solutions Sustainable Technology Solutions Total Cost Reimbursable $ 1,417 $ — $ 1,417 Time-and-Materials 438 377 815 Fixed Price 540 225 765 Total revenue $ 2,395 $ 602 $ 2,997
Schedule of accounts receivable	June 30, December 31, Dollars in millions 2022 2021 Unbilled $ 483 $ 698 Trade & other 550 713 Accounts receivable $ 1,033 $ 1,411

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2022
Business Combination and Asset Acquisition [Abstract]
Schedule of pro forma information	The following supplemental pro forma, combined financial information has been prepared from historical financial statements that have been adjusted to give effect to the acquisition of Frazer-Nash as though it had been acquired on January 1, 2021. Pro forma adjustments were primarily related to the amortization of intangibles, interest on borrowings related to the acquisition, significant nonrecurring transactions and acquisition related transaction costs. Accordingly, this supplemental pro forma financial information is presented for informational purposes only and is not necessarily indicative of what the actual results of operations of the combined company would have been had the acquisition occurred on January 1, 2021, nor is it indicative of future results of operations. Three Months Ended Six Months Ended Dollars in millions June 30, 2021 June 30, 2021 (Unaudited) (Unaudited) Revenue $ 1,574 $ 3,080 Net income attributable to KBR $ (146) $ (94) Diluted earnings per share $ (1.04) $ (0.67)

Cash and Cash Equivalents (Tabl

Cash and Cash Equivalents (Tables)	6 Months Ended
	Jun. 30, 2022
Cash and Cash Equivalents [Abstract]
Schedule of components of our cash and equivalents balance	The components of our cash and cash equivalents balance are as follows: June 30, 2022 Dollars in millions International (a) Domestic (b) Total Operating cash and cash equivalents $ 228 $ 8 $ 236 Short-term investments (c) 7 158 165 Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities 115 — 115 Total $ 350 $ 166 $ 516 December 31, 2021 Dollars in millions International (a) Domestic (b) Total Operating cash and cash equivalents $ 218 $ 34 $ 252 Short-term investments (c) 2 — 2 Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities 116 — 116 Total $ 336 $ 34 $ 370 (a) Includes deposits held by non-U.S. entities with operating accounts that constitute offshore cash for tax purposes. (b) Includes U.S. dollar and foreign currency deposits held in U.S. entities with operating accounts that constitute onshore cash for tax purposes but may reside either in the U.S. or in a foreign country. (c) Includes time deposits, money market funds and other highly liquid short-term investments.

Unapproved Change Orders and _2

Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors (Tables)	6 Months Ended
	Jun. 30, 2022
Contractors [Abstract]
Schedule of unapproved claims and change orders	The amounts of unapproved change orders, and claims against clients and estimated recoveries of claims against suppliers and subcontractors included in determining the profit or loss on contracts are as follows: Dollars in millions June 30, 2022 June 30, 2021 Amounts included in project estimates-at-completion at January 1, $ 426 $ 1,048 Decrease in project estimates (114) (228) Approved change orders (271) (11) Foreign currency impact 7 (1) Amounts included in project estimates-at-completion at June 30, $ 48 $ 808

Equity Method Investments and_2

Equity Method Investments and Variable Interest Entities (Tables)	6 Months Ended
	Jun. 30, 2022
Equity Method Investments and Joint Ventures [Abstract]
Schedule of equity in earnings of unconsolidated affiliates	The following table presents a rollforward of our equity in and advances to unconsolidated affiliates: Six Months Ended June 30, Year Ended December 31, 2022 2021 Dollars in millions Beginning balance at January 1, $ 576 $ 881 Equity in earnings (losses) of unconsolidated affiliates (108) (170) Distributions of earnings of unconsolidated affiliates (a) (18) (72) Payments from unconsolidated affiliates, net (8) (17) (Return of) investments in equity method investment, net (b) (189) 29 Sale of equity method investment (c) (41) (39) Foreign currency translation adjustments (13) (10) Other (d) — (26) Ending balance $ 199 $ 576 (a) The Brown & Root Industrial Services joint venture declared a distribution in the fourth quarter of 2021 that was paid to KBR during the six months ended June 30, 2022. (b) For the six months ended June 30, 2022, we received a return of investment from JKC of approximately $190 million related to the Subcontractor Settlement Agreement, offset by $1 million in funding contributions to JKC. For the year ended December 31, 2021, investments include $26 million in funding contributions to JKC. (c) During the first quarter of 2022, we sold two of our four U.K. Road projects. The carrying value of our investment was $22 million. We received $18 million in cash proceeds and the purchaser agreed to assume the $4 million of consortium relief. In the second quarter of 2022, we sold an additional U.K. Road project with a carry value of $19 million and recorded a gain of approximately $16 million upon receipt of $35 million in cash proceeds, in addition to receipt of $2 million of deferred consideration from the Q1 2022 sales. During the third quarter of 2021, we sold our investment interest in the Middle East Petroleum Corporation (EBIC Ammonia project). The carrying value of our investment was $39 million. We received $43 million in cash proceeds and recorded a gain of $4 million, of which $1 million was attributable to our non-controlling interests. Subsequent to the receipt of the cash proceeds, we distributed the non-controlling interests' proportionate share of $15 million. (d) During the year ended December 31, 2021, Other included unearned income related to the Ichthys LNG Project, which was previously recorded outside of the equity method investment balance and will not be realized as a result of the settlement proceedings. See Note 6 "Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors" for additional information.
Schedule of services provided to unconsolidated JV's	Amounts included in our condensed consolidated balance sheets related to services we provided to our unconsolidated joint ventures as of June 30, 2022, and December 31, 2021 are as follows: June 30, December 31, Dollars in millions 2022 2021 Accounts receivable, net of allowance for credit losses $ 56 $ 35 Contract assets $ 2 $ 2 Other current assets $ — $ 25 Contract liabilities $ 30 $ 5

Retirement Benefits (Tables)

Retirement Benefits (Tables)	6 Months Ended
	Jun. 30, 2022
Retirement Benefits [Abstract]
Schedule of net periodic pension benefit	The components of net periodic pension benefit related to pension benefits for the six months ended June 30, 2022 and 2021 were as follows: Three Months Ended June 30, 2022 2021 Dollars in millions United States Int’l United States Int’l Components of net periodic pension benefit Service cost $ — $ 1 $ — $ — Interest cost $ — $ 9 $ 1 $ 8 Expected return on plan assets (1) (21) (1) (22) Amortization of prior service cost — — — 1 Recognized actuarial loss 1 6 — 8 Net periodic pension benefit $ — $ (5) $ — $ (5) Six Months Ended June 30, 2022 2021 Dollars in millions United States Int’l United States Int’l Components of net periodic pension benefit Service cost $ — $ 1 $ — $ — Interest cost $ 1 $ 18 $ 1 $ 16 Expected return on plan assets (2) (43) (2) (43) Amortization of prior service cost — — — 1 Recognized actuarial loss 1 12 1 16 Net periodic pension benefit $ — $ (12) $ — $ (10)

Debt and Other Credit Facilit_2

Debt and Other Credit Facilities (Tables)	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Schedule of outstanding debt	Our outstanding debt consisted of the following at the dates indicated: Dollars in millions June 30, 2022 December 31, 2021 (1) Term Loan A $ 415 $ 441 Term Loan B 508 511 Convertible Senior Notes 350 350 Senior Notes 250 250 Senior Credit Facility 260 364 Unamortized debt issuance costs - Term Loan A (3) (4) Unamortized debt issuance costs and discount - Term Loan B (12) (13) Unamortized debt issuance costs and discount - Convertible Senior Notes (2) (4) Unamortized debt issuance costs and discount - Senior Notes (4) (4) Total debt 1,762 1,891 Less: current portion 16 16 Total long-term debt, net of current portion $ 1,746 $ 1,875 (1) As adjusted for the adoption of ASU 2020-06 using the full retrospective method. The details of the applicable margins and commitment fees under the amended Senior Credit Facility are based on the Company's consolidated net leverage ratio as follows: Revolver and Term Loan A Consolidated Net Leverage Ratio Reference Rate (a) Base Rate Commitment Fee Greater than or equal to 4.25 to 1.00 2.25 % 1.25 % 0.33 % Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 2.00 % 1.00 % 0.30 % Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 1.75 % 0.75 % 0.28 % Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 1.50 % 0.50 % 0.25 % Less than 1.25 to 1.00 1.25 % 0.25 % 0.23 %

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Loss (Tables)	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Schedule of accumulated other comprehensive income (loss)	Changes in AOCL, net of tax, by component Dollars in millions Accumulated foreign currency translation adjustments Accumulated pension liability adjustments Changes in fair value of derivatives Total Balance at December 31, 2021 $ (296) $ (581) $ (4) $ (881) Other comprehensive income adjustments before reclassifications (53) — 23 (30) Amounts reclassified from AOCL — 10 5 15 Net other comprehensive income (loss) (53) 10 28 (15) Balance at June 30, 2022 $ (349) $ (571) $ 24 $ (896) Dollars in millions Accumulated foreign currency translation adjustments Accumulated pension liability adjustments Changes in fair value of derivatives Total Balance at December 31, 2020 $ (291) $ (764) $ (28) $ (1,083) Other comprehensive income adjustments before reclassifications 8 — 8 16 Amounts reclassified from AOCL 3 13 6 22 Net other comprehensive income (loss) 11 13 14 38 Balance at June 30, 2021 $ (280) $ (751) $ (14) $ (1,045)
Schedule of reclassification out of accumulated other comprehensive income	Reclassifications out of AOCL, net of tax, by component Six Months Ended June 30, Dollars in millions 2022 2021 Affected line item on the Condensed Consolidated Statements of Operations Accumulated foreign currency adjustments Reclassification of foreign currency adjustments $ — $ (3) Net income attributable to noncontrolling interests and Gain on disposition of assets and investments Tax benefit — — Provision for income taxes Net accumulated foreign currency $ — $ (3) Net of tax Accumulated pension liability adjustments Amortization of actuarial loss (a) $ (13) $ (16) See (a) below Tax benefit 3 3 Provision for income taxes Net pension and post-retirement benefits $ (10) $ (13) Net of tax Changes in fair value for derivatives Foreign currency hedge and interest rate swap settlements $ (6) $ (8) Other non-operating expense Tax benefit 1 2 Provision for income taxes Net changes in fair value of derivatives $ (5) $ (6) Net of tax (a) This item is included in the computation of net periodic pension cost. See Note 9 "Retirement Benefits" to our condensed consolidated financial statements for further discussion.

Share Repurchases (Tables)

Share Repurchases (Tables)	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Schedule of shares repurchased	The table below presents information on our share repurchases activity under these programs: Three Months Ended Six Months Ended June 30, 2022 June 30, 2022 Number of Shares Average Price per Share Dollars in Millions Number of Shares Average Price per Share Dollars in Millions Repurchases under the $350 million authorized share repurchase program 823,333 $ 48.56 $ 40 1,342,665 $ 48.39 $ 65 Withheld to cover shares 11,584 $ 45.31 1 182,523 $ 48.48 $ 9 Total 834,917 $ 48.51 $ 41 1,525,188 $ 48.40 $ 74 Three Months Ended Six Months Ended June 30, 2021 June 30, 2021 Number of Shares Average Price per Share Dollars in Millions Number of Shares Average Price per Share Dollars in Millions Repurchases under the $350 million authorized share repurchase program 681,284 $ 40.89 $ 28 681,284 $ 40.89 $ 28 Withheld to cover shares 11,873 $ 40.97 — 141,249 $ 31.90 $ 4 Total 693,157 $ 40.89 $ 28 822,533 $ 39.35 $ 32

Income (loss) per Share (Tables

Income (loss) per Share (Tables)	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Schedule of earnings per share, basic and diluted income per share calculations	A summary of the basic and diluted net income (loss) per share calculations is as follows: Three Months Ended June 30, Six Months Ended June 30, Shares in millions 2022 2021 (1) 2022 2021 (1) Net income (loss) attributable to KBR: Basic net income (loss) attributable to KBR $ 94 $ (149) $ 23 $ (100) Reversal of Convertible Debt interest expense 1 — $ 3 — Diluted net income (loss) attributable to KBR (a) $ 95 $ (149) $ 26 $ (100) Weighted average common shares outstanding: Basic weighted average common shares outstanding 139 141 139 141 Convertible debt 14 — 14 — Warrants 3 — 3 — Diluted weighted average common shares outstanding (a) 156 141 156 141 Net income (loss) attributable to KBR per share: Basic $0.68 $(1.06) $0.17 $(0.71) Diluted (a) $0.61 $(1.06) $0.17 $(0.71) (1) As adjusted for the adoption of ASU 2020-06 using the full retrospective method. (a) In periods for which we report a net loss attributable to KBR, basic net loss per share and diluted net loss per share are identical as the effect of all potential common shares is anti-dilutive and therefore excluded.

Fair Value of Financial Instr_2

Fair Value of Financial Instruments and Risk Management (Tables)	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Schedule of carrying values and estimated fair values of financial instruments	The carrying values and estimated fair values of our financial instruments that are not required to be recorded at fair value in our condensed consolidated balance sheets are provided in the following table. June 30, 2022 December 31, 2021 Dollars in millions Carrying Value Fair Value Carrying Value Fair Value Liabilities (including current maturities): Term Loan A Level 2 $ 415 $ 415 $ 441 $ 441 Term Loan B Level 2 508 506 511 514 Convertible Notes Level 2 350 669 350 669 Senior Notes Level 2 250 222 250 256 Senior Credit Facility Level 2 ` 260 260 364 364 Nonrecourse project debt Level 2 1 1 2 2
Schedule of derivatives instruments statements of financial performance and financial position, location	The following table summarizes the recognized changes in fair value of our balance sheet hedges offset by remeasurement of balance sheet positions. These amounts are recognized in our condensed consolidated statements of operations for the periods presented. The net of our changes in fair value of hedges and the remeasurement of our assets and liabilities is included in other non-operating income (expense) on our condensed consolidated statements of operations. Three Months Ended Six Months Ended June 30, June 30, Dollars in millions 2022 2021 2022 2021 Balance Sheet Hedges - Fair Value $ 5 $ (1) $ 5 $ (1) Balance Sheet Position - Remeasurement (1) 1 (1) (5) Net gain (loss) $ 4 $ — $ 4 $ (6)
Schedule of sale of receivables activity	Activity for third-party financial institutions consisted of the following: Six Months Ended Six Months Ended Dollars in millions June 30, 2022 June 30, 2021 Beginning balance $ 481 112 Sale of receivables 1,782 1,154 Settlement of receivables (2,141) (1,147) Outstanding balances sold to financial institutions $ 122 $ 119

Basis of Presentation (Balance

Basis of Presentation (Balance Sheet) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Assets:
Deferred income taxes	$ 202	$ 231	[1]
Liabilities:
Long-term debt	1,746	1,875	[1]
KBR Shareholders' Equity:
PIC	2,222	2,206	[1]
Retained earnings	$ 1,276	1,287	[1]
As Previously Reported
Assets:
Deferred income taxes		226
Liabilities:
Long-term debt		1,852
KBR Shareholders' Equity:
PIC		2,251
Retained earnings		1,260
Adjustments | Accounting Standards Update 2020-06
Assets:
Deferred income taxes		5
Liabilities:
Long-term debt		23
KBR Shareholders' Equity:
PIC		(45)
Retained earnings		$ 27
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Basis of Presentation (Income S

Basis of Presentation (Income Statement) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest Expense	$ (21)	$ (20)	[1]	$ (41)	$ (39)	[1]
Income (loss) before income taxes	127	(106)	[1]	76	(39)	[1]
Provision for income taxes	(33)	(40)	[1]	(52)	(57)	[1]
Net income (loss)	94	(146)	[2]	24	(96)	[2]
Net income (loss) attributable to KBR	$ 94	$ (149)	[1]	$ 23	$ (100)	[1]
Net income attributable to KBR per share:
Basic (in usd per share)	$ 0.68	$ (1.06)	[1]	$ 0.17	$ (0.71)	[1]
Diluted (in usd per share)	$ 0.61	$ (1.06)	[1]	$ 0.17	$ (0.71)	[1]
Basic weighted average common shares outstanding (in shares)	139	141	[1]	139	141	[1]
Diluted weighted average common shares outstanding (in shares)	156	141	[1]	156	141	[1]
As Previously Reported
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest Expense		$ (23)			$ (45)
Income (loss) before income taxes		(109)			(45)
Provision for income taxes		(40)			(56)
Net income (loss)		(149)			(101)
Net income (loss) attributable to KBR		$ (152)			$ (105)
Net income attributable to KBR per share:
Basic (in usd per share)		$ (1.08)			$ (0.75)
Diluted (in usd per share)		$ (1.08)			$ (0.75)
Basic weighted average common shares outstanding (in shares)		141			141
Diluted weighted average common shares outstanding (in shares)		141			141
Adjustments | Accounting Standards Update 2020-06
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest Expense		$ 3			$ 6
Income (loss) before income taxes		3			6
Provision for income taxes		0			(1)
Net income (loss)		3			5
Net income (loss) attributable to KBR		$ 3			$ 5
Net income attributable to KBR per share:
Basic (in usd per share)		$ 0.02			$ 0.04
Diluted (in usd per share)		$ 0.02			$ 0.04
Basic weighted average common shares outstanding (in shares)		0			0
Diluted weighted average common shares outstanding (in shares)		0			0
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Basis of Presentation (Cash Flo

Basis of Presentation (Cash Flows) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
Cash flows from operating activities:
Net Income	$ 94	$ (146)	[1]	$ 24	$ (96)	[1]
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax				33	36	[2]
Other				15	17	[2]
Total cash flows provided by operating activities				$ 214	154	[2]
As Previously Reported
Cash flows from operating activities:
Net Income		(149)			(101)
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax					35
Other					23
Total cash flows provided by operating activities					154
Adjustments | Accounting Standards Update 2020-06
Cash flows from operating activities:
Net Income		$ 3			5
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income tax					1
Other					(6)
Total cash flows provided by operating activities					$ 0
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Basis of Presentation (Balanc_2

Basis of Presentation (Balance Sheet Additional Disclosure) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Current maturities of long-term debt	$ 16	$ 16
Reserve for estimated losses on uncompleted contracts	14	17
Retainage payable	10	13
Restructuring reserve	14	17
Value-added tax payable	37	34
Dividend payable	17	16
Other miscellaneous liabilities	60	65
Total other current liabilities	$ 168	$ 178	[1]
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Business Segment Information (N

Business Segment Information (Narrative) (Details)	6 Months Ended
	Jun. 30, 2022 segment process_technology area
Segment Reporting Information [Line Items]
Core business segments, number	2
Non-core business segments, number	1
Sustainable Technology Solutions
Segment Reporting Information [Line Items]
Number of process technologies (over) | process_technology	70
Number of primary areas | area	4

Business Segment Information (S

Business Segment Information (Schedule of Operations by Reportable Segment) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Total revenues	$ 1,616	$ 1,536	[1]	$ 3,330	$ 2,997	[1]
Total gross profit	201	207	[1]	397	375	[1]
Total equity in earnings (losses) of unconsolidated affiliates	10	(186)	[1]	(108)	(174)	[1]
Total selling, general and administrative expenses	(105)	(103)	[1]	(212)	(192)	[1]
Acquisition and integration related costs	0	(3)	[1]	(1)	(4)	[1]
Gain (loss) on disposition of assets and investments	22	(1)	[1]	22	(2)	[2]
Other	(1)	(2)	[1]	(2)	(2)	[1]
Operating income (loss)	127	(88)	[1]	96	1	[1]
Interest expense	(21)	(20)	[1]	(41)	(39)	[1]
Unrealized gain on cost method investment	16	0	[1]	16	0	[1]
Other non-operating income (expense)	5	2	[1]	5	(1)	[1]
Income (loss) before income taxes	127	(106)	[1]	76	(39)	[1]
Government Solutions
Segment Reporting Information [Line Items]
Total revenues	1,312	1,231		2,771	2,395
Total gross profit	154	130		313	246
Total equity in earnings (losses) of unconsolidated affiliates	9	8		19	15
Total selling, general and administrative expenses	(54)	(49)		(108)	(98)
Sustainable Technology Solutions
Segment Reporting Information [Line Items]
Total revenues	304	305		559	602
Total gross profit	47	77		84	129
Total equity in earnings (losses) of unconsolidated affiliates	1	(194)		(127)	(189)
Total selling, general and administrative expenses	(17)	(21)		(32)	(35)
Other
Segment Reporting Information [Line Items]
Total selling, general and administrative expenses	$ (34)	$ (33)		$ (72)	$ (59)
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Revenue (Revenue by Geographic

Revenue (Revenue by Geographic Destination) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 1,616	$ 1,536	[1]	$ 3,330	$ 2,997	[1]
United States
Disaggregation of Revenue [Line Items]
Revenues	898	913		2,018	1,775
Middle East
Disaggregation of Revenue [Line Items]
Revenues	104	197		192	374
Europe
Disaggregation of Revenue [Line Items]
Revenues	396	222		711	439
Australia
Disaggregation of Revenue [Line Items]
Revenues	122	90		212	171
Africa
Disaggregation of Revenue [Line Items]
Revenues	38	43		73	82
Asia
Disaggregation of Revenue [Line Items]
Revenues	31	52		76	103
Other countries
Disaggregation of Revenue [Line Items]
Revenues	27	19		48	53
Government Solutions
Disaggregation of Revenue [Line Items]
Revenues	1,312	1,231		2,771	2,395
Government Solutions | United States
Disaggregation of Revenue [Line Items]
Revenues	770	804		1,781	1,553
Government Solutions | Middle East
Disaggregation of Revenue [Line Items]
Revenues	51	143		90	276
Government Solutions | Europe
Disaggregation of Revenue [Line Items]
Revenues	342	161		625	334
Government Solutions | Australia
Disaggregation of Revenue [Line Items]
Revenues	111	90		201	167
Government Solutions | Africa
Disaggregation of Revenue [Line Items]
Revenues	22	19		40	38
Government Solutions | Asia
Disaggregation of Revenue [Line Items]
Revenues	3	1		6	1
Government Solutions | Other countries
Disaggregation of Revenue [Line Items]
Revenues	13	13		28	26
Sustainable Technology Solutions
Disaggregation of Revenue [Line Items]
Revenues	304	305		559	602
Sustainable Technology Solutions | United States
Disaggregation of Revenue [Line Items]
Revenues	128	109		237	222
Sustainable Technology Solutions | Middle East
Disaggregation of Revenue [Line Items]
Revenues	53	54		102	98
Sustainable Technology Solutions | Europe
Disaggregation of Revenue [Line Items]
Revenues	54	61		86	105
Sustainable Technology Solutions | Australia
Disaggregation of Revenue [Line Items]
Revenues	11	0		11	4
Sustainable Technology Solutions | Africa
Disaggregation of Revenue [Line Items]
Revenues	16	24		33	44
Sustainable Technology Solutions | Asia
Disaggregation of Revenue [Line Items]
Revenues	28	51		70	102
Sustainable Technology Solutions | Other countries
Disaggregation of Revenue [Line Items]
Revenues	14	6		20	27
Science & Space | Government Solutions
Disaggregation of Revenue [Line Items]
Revenues	257	261		510	508
Defense & Intel | Government Solutions
Disaggregation of Revenue [Line Items]
Revenues	388	395		766	746
Readiness & Sustainment | Government Solutions
Disaggregation of Revenue [Line Items]
Revenues	371	315		904	644
International | Government Solutions
Disaggregation of Revenue [Line Items]
Revenues	$ 296	$ 260		$ 591	$ 497
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Revenue (Revenue by Contract Ty

Revenue (Revenue by Contract Type) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,616	$ 1,536	[1]	$ 3,330	$ 2,997	[1]
Cost Reimbursable
Disaggregation of Revenue [Line Items]
Total revenue	788	728		1,743	1,417
Time-and-Materials
Disaggregation of Revenue [Line Items]
Total revenue	445	413		855	815
Fixed Price
Disaggregation of Revenue [Line Items]
Total revenue	383	395		732	765
Government Solutions
Disaggregation of Revenue [Line Items]
Total revenue	1,312	1,231		2,771	2,395
Government Solutions | Cost Reimbursable
Disaggregation of Revenue [Line Items]
Total revenue	788	728		1,743	1,417
Government Solutions | Time-and-Materials
Disaggregation of Revenue [Line Items]
Total revenue	246	226		481	438
Government Solutions | Fixed Price
Disaggregation of Revenue [Line Items]
Total revenue	278	277		547	540
Sustainable Technology Solutions
Disaggregation of Revenue [Line Items]
Total revenue	304	305		559	602
Sustainable Technology Solutions | Cost Reimbursable
Disaggregation of Revenue [Line Items]
Total revenue	0	0		0	0
Sustainable Technology Solutions | Time-and-Materials
Disaggregation of Revenue [Line Items]
Total revenue	199	187		374	377
Sustainable Technology Solutions | Fixed Price
Disaggregation of Revenue [Line Items]
Total revenue	$ 105	$ 118		$ 185	$ 225
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Revenue (Narrative) (Details)

Revenue (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue recognized from performance obligation satisfied in previous period	$ 37	$ 42	$ 18
Contract liability, revenue recognized		$ 142	$ 144

Revenue (Remaining Performance

Revenue (Remaining Performance Obligation) (Details) $ in Billions	Jun. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation	$ 11.2
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected to be satisfied in one year, percentage	37%
Revenue, remaining performance obligation, expected timing of satisfaction	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected to be satisfied in one year, percentage	36%
Revenue, remaining performance obligation, expected timing of satisfaction	4 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected to be satisfied in one year, percentage	27%
Revenue, remaining performance obligation, expected timing of satisfaction

Revenue (Accounts Receivable, C

Revenue (Accounts Receivable, Contract Assets and Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Revenue from External Customer [Line Items]
Accounts receivable	$ 1,033	$ 1,411	[1]
Unbilled
Revenue from External Customer [Line Items]
Accounts receivable	483	698
Trade & other
Revenue from External Customer [Line Items]
Accounts receivable	$ 550	$ 713
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Acquisitions (VIMA Group) (Deta

Acquisitions (VIMA Group) (Details) - VIMA Group - Subsequent Event $ in Millions	Aug. 02, 2022 USD ($)
Business Acquisition [Line Items]
Cash consideration paid	$ 73
Deferred consideration	5
Contingent consideration	$ 12

Acquisitions (Frazer-Nash Consu

Acquisitions (Frazer-Nash Consultancy Limited) (Details) - USD ($) $ in Millions	Oct. 20, 2021	Jun. 30, 2022	Dec. 31, 2021	[1]
Business Acquisition [Line Items]
Goodwill		$ 2,025	$ 2,060
Frazer-Nash Consultancy Limited
Business Acquisition [Line Items]
Cash consideration paid	$ 392
Goodwill	293
Assets acquired	$ 89
Weighted average useful life	14 years
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Acquisitions (Pro Forma Informa

Acquisitions (Pro Forma Information) (Details) - Frazer-Nash Consultancy Limited - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Business Acquisition [Line Items]
Revenue	$ 1,574	$ 3,080
Net income attributable to KBR	$ (146)	$ (94)
Diluted earnings per share (usd per share)	$ (1.04)	$ (0.67)

Cash and Cash Equivalents (Deta

Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 516	$ 370	[1]
Operating cash and cash equivalents
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	236	252
Short-term investments
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	165	2
Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	115	116
International
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	350	336
International | Operating cash and cash equivalents
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	228	218
International | Short-term investments
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	7	2
International | Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	115	116
Domestic
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	166	34
Domestic | Operating cash and cash equivalents
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	8	34
Domestic | Short-term investments
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	158	0
Domestic | Cash and cash equivalents held in consolidated joint ventures and Aspire Defence subcontracting entities
Cash and Cash Equivalents [Line Items]
Cash and cash equivalents	$ 0	$ 0
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Unapproved Change Orders and _3

Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors (Rollforward) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Unapproved Change Orders [Roll Forward]
Amounts included in project estimates-at-completion at January 1,	$ 426	$ 1,048
Decrease in project estimates	(114)	(228)
Approved change orders	(271)	(11)
Foreign currency impact	7	(1)
Amounts included in project estimates-at-completion at June 30,	$ 48	$ 808

Unapproved Change Orders and _4

Unapproved Change Orders and Claims Against Clients and Estimated Recoveries of Claims Against Suppliers and Subcontractors (Narrative) (Details) $ in Millions, $ in Millions	1 Months Ended	3 Months Ended				6 Months Ended
	Apr. 30, 2022 AUD ($) payment	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Jun. 30, 2021 USD ($)		Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)		May 31, 2022 USD ($)	Oct. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)
Increases in Unapproved Change Orders and Claims [Line Items]
Equity in earnings (losses) of unconsolidated affiliates		$ 10		$ (186)	[1]	$ (108)	$ (174)	[1]
(Unfavorable) Favorable change in gross profit		201		207	[1]	397	375	[1]
Unfavorable change in revenue and gross profit						(7)	1
Sustainable Technology Solutions
Increases in Unapproved Change Orders and Claims [Line Items]
Equity in earnings (losses) of unconsolidated affiliates		1		(194)		(127)	(189)
(Unfavorable) Favorable change in gross profit		47		77		84	129
Government Solutions
Increases in Unapproved Change Orders and Claims [Line Items]
Equity in earnings (losses) of unconsolidated affiliates		9		8		19	15
(Unfavorable) Favorable change in gross profit		$ 154		$ 130		313	246
Unfavorable change in revenue and gross profit						9
Ichthys LNG Project
Increases in Unapproved Change Orders and Claims [Line Items]
Letters of credit outstanding, amount										$ 82	$ 164
Ichthys LNG Project | Sustainable Technology Solutions
Increases in Unapproved Change Orders and Claims [Line Items]
Equity in earnings (losses) of unconsolidated affiliates						(137)	(193)
Power Plant Subcontractor Consortium
Increases in Unapproved Change Orders and Claims [Line Items]
Subcontractor settlement	$ 360
Number of payment | payment	2
Subcontractor settlement first payment	$ 270								$ 190
Amount to be paid for second settlement payment	$ 90
Equity in earnings (losses) of unconsolidated affiliates			$ (137)
EPC Project | Sustainable Technology Solutions
Increases in Unapproved Change Orders and Claims [Line Items]
(Unfavorable) Favorable change in gross profit						(22)	37
Severance and asset impairment costs						$ 6
Other Legacy Matters | Sustainable Technology Solutions
Increases in Unapproved Change Orders and Claims [Line Items]
Equity method investment, settlement							$ 16
JKC Joint Venture
Increases in Unapproved Change Orders and Claims [Line Items]
Ownership percentage						30%
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Restructuring Charges (Narrativ

Restructuring Charges (Narrative) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring liability	$ 58	$ 66
Other Current Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring liability	14	17
Other Liabilities
Restructuring Cost and Reserve [Line Items]
Restructuring liability	$ 44	$ 49

Equity Method Investments and_3

Equity Method Investments and Variable Interest Entities (Schedule of Equity in Earnings of Unconsolidated Affiliates) (Details) $ in Millions		3 Months Ended					6 Months Ended			12 Months Ended
		Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($) project	Sep. 30, 2021 USD ($)	Jun. 30, 2021 USD ($)	[2]	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)		Dec. 31, 2021 USD ($)
Equity Method Investment [Roll Forward]
Beginning balance at January 1,	[1]		$ 576				$ 576
Equity in earnings (losses) of unconsolidated affiliates		$ 10			$ (186)		(108)	$ (174)	[2]
Distributions of earnings of unconsolidated affiliates							(43)	(26)	[3]
(Return of) investments in equity method investment, net							(189)
(Return of) investments in equity method investment	[3]							7
Ending balance		199					199			$ 576	[1]
EBIC Ammonia Project
Equity Method Investment [Roll Forward]
Sale of equity method investment				$ (39)
Equity method investments				39
Cash proceeds				43
Gain (loss) on disposal				4
Payment of proportionate share of sale of equity method investment to noncontrolling interest				15
EBIC Ammonia Project | Noncontrolling Interest
Equity Method Investment [Roll Forward]
Portion of gain attributable to noncontrolling interest				$ 1
U K Road Projects
Equity Method Investment [Roll Forward]
Sale of equity method investment		(19)	$ (22)
Number of projects to be sold | project			2
Number of projects | project			4
Equity method investments		19	$ 22
Cash proceeds			18
Gain (loss) on disposal			(4)
Equity Method Investments
Equity Method Investment [Roll Forward]
Beginning balance at January 1,			576				576	$ 881		881
Equity in earnings (losses) of unconsolidated affiliates							(108)			(170)
Distributions of earnings of unconsolidated affiliates							(18)			(72)
Payments from unconsolidated affiliates, net							(8)			(17)
(Return of) investments in equity method investment, net							(189)
(Return of) investments in equity method investment										29
Sale of equity method investment							(41)			(39)
Foreign currency translation adjustments							(13)			(10)
Other							0			(26)
Ending balance		199					199			576
Amount allocated to fund ownership venture										26
Equity method investments							41			$ 39
Cash proceeds		35
Gain (loss) on disposal		$ 16
Deferred consideration			$ 2
Equity Method Investments | Subcontractor Settlement Agreement
Equity Method Investment [Roll Forward]
(Return of) investments in equity method investment, net							(190)
Amount allocated to fund ownership venture							$ 1
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[3]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Equity Method Investments and_4

Equity Method Investments and Variable Interest Entities (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Transactions with Related Parties
Schedule of Equity Method Investments [Line Items]
Revenue from related parties	$ 200	$ 194

Equity Method Investments and_5

Equity Method Investments and Variable Interest Entities (Related Party Disclosures) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Accounts receivable, net of allowance for credit losses	$ 1,033	$ 1,411	[1]
Contract assets	208	224	[1]
Other current assets	125	147	[1]
Contract liabilities	337	313	[1]
Transactions with Related Parties
Schedule of Equity Method Investments [Line Items]
Accounts receivable, net of allowance for credit losses	56	35
Contract assets	2	2
Other current assets	0	25
Contract liabilities	$ 30	$ 5
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Retirement Benefits (Details)

Retirement Benefits (Details) - Pension Plan - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Components of net periodic pension benefit
Contributions by employer			$ 22
Estimated future employer contributions in next fiscal year	$ 43		43
United States
Components of net periodic pension benefit
Service cost	0	$ 0	0	$ 0
Interest cost	0	1	1	1
Expected return on plan assets	(1)	(1)	(2)	(2)
Amortization of prior service cost	0	0	0	0
Recognized actuarial loss	1	0	1	1
Net periodic pension benefit	0	0	0	0
Int’l
Components of net periodic pension benefit
Service cost	1	0	1	0
Interest cost	9	8	18	16
Expected return on plan assets	(21)	(22)	(43)	(43)
Amortization of prior service cost	0	1	0	1
Recognized actuarial loss	6	8	12	16
Net periodic pension benefit	$ (5)	$ (5)	$ (12)	$ (10)

Debt and Other Credit Facilit_3

Debt and Other Credit Facilities (Outstanding Debt Balances) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021	Nov. 18, 2021
Debt Instrument [Line Items]
Total debt	$ 1,762	$ 1,891
Less: current portion	16	16
Total long-term debt, net of current portion	1,746	1,875
Secured Debt | Term Loan A
Debt Instrument [Line Items]
Long-term debt	415	441
Unamortized debt issuance costs	(3)	(4)
Total debt			$ 442
Secured Debt | Term Loan B
Debt Instrument [Line Items]
Long-term debt	508	511
Unamortized debt issuance costs	(12)	(13)
Total debt			$ 512
Convertible Debt
Debt Instrument [Line Items]
Long-term debt	350	350
Unamortized debt issuance costs	(2)	(4)
Senior Notes
Debt Instrument [Line Items]
Long-term debt	250	250
Unamortized debt issuance costs	(4)	(4)
Senior Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	$ 260	$ 364

Debt and Other Credit Facilit_4

Debt and Other Credit Facilities (Senior Credit Facility) (Details) £ in Millions	Nov. 18, 2021 USD ($)	Mar. 31, 2024	Jun. 30, 2022 USD ($)	Mar. 31, 2022	Dec. 31, 2021 USD ($)	Nov. 18, 2021 GBP (£)	Jun. 30, 2020
Line of Credit Facility [Line Items]
Revolving credit agreement			$ 1,762,000,000		$ 1,891,000,000
Line of credit facility, maximum borrowing capacity	$ 1,954,000,000
Secured Debt | Term Loan A
Line of Credit Facility [Line Items]
Revolving credit agreement	442,000,000
Debt instrument, periodic payment, percentage of aggregate principal				0.625%
Debt instrument, covenant, interest coverage ratio			3
Secured Debt | Term Loan A | Maximum
Line of Credit Facility [Line Items]
Debt instrument, covenant, leverage ratio through 2022			4.50
Debt instrument, covenant, leverage ratio through 2023			4.25
Debt instrument, covenant, leverage ratio through 2024			4
Secured Debt | Term Loan A | Forecast
Line of Credit Facility [Line Items]
Debt instrument, periodic payment, percentage of aggregate principal		1.25%
Secured Debt | Term Loan A | Subsidiaries
Line of Credit Facility [Line Items]
Revolving credit agreement | £						£ 122.1
Secured Debt | Term Loan B
Line of Credit Facility [Line Items]
Revolving credit agreement	$ 512,000,000
Debt instrument, periodic payment, percentage of aggregate principal							0.25%
Secured Debt | Term Loan B | Reference Rate
Line of Credit Facility [Line Items]
Revolver and term loan A, interest rate	2.75%
Revolving Credit Facility | Performance Letter of Credit Fee
Line of Credit Facility [Line Items]
Letters of credit outstanding, amount	$ 1,000,000,000		$ 49,000,000

Debt and Other Credit Facilit_5

Debt and Other Credit Facilities (Schedule of Commitment Fees) (Details)	Nov. 18, 2021
Greater than or equal to 4.25 to 1.00
Debt Instrument [Line Items]
Commitment Fee	0.33%
Greater than or equal to 4.25 to 1.00 | Revolver and Term Loan A | Reference Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	2.25%
Greater than or equal to 4.25 to 1.00 | Revolver and Term Loan A | Base Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	1.25%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00
Debt Instrument [Line Items]
Commitment Fee	0.30%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Revolver and Term Loan A | Reference Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	2%
Less than 4.25 to 1.00 but greater than or equal to 3.25 to 1.00 | Revolver and Term Loan A | Base Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	1%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00
Debt Instrument [Line Items]
Commitment Fee	0.28%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Revolver and Term Loan A | Reference Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	1.75%
Less than 3.25 to 1.00 but greater than or equal to 2.25 to 1.00 | Revolver and Term Loan A | Base Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	0.75%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00
Debt Instrument [Line Items]
Commitment Fee	0.25%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Revolver and Term Loan A | Reference Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	1.50%
Less than 2.25 to 1.00 but greater than or equal to 1.25 to 1.00 | Revolver and Term Loan A | Base Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	0.50%
Less than 1.25 to 1.00
Debt Instrument [Line Items]
Commitment Fee	0.23%
Less than 1.25 to 1.00 | Revolver and Term Loan A | Reference Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	1.25%
Less than 1.25 to 1.00 | Revolver and Term Loan A | Base Rate
Debt Instrument [Line Items]
Revolver and Term Loan A	0.25%

Debt and Other Credit Facilit_6

Debt and Other Credit Facilities (Convertible Senior Notes) (Details)			3 Months Ended			6 Months Ended
	May 19, 2022 $ / shares	Nov. 15, 2018 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Jun. 30, 2021 $ / shares		Jun. 30, 2022 USD ($) $ / shares	Jun. 30, 2021 $ / shares
Debt Instrument [Line Items]
Cash dividends declared per share (in usd per share)			$ 0.12	$ 0.11	[1]	$ 0.24	$ 0.22	[1]
Derivative, amount of hedged item | $		$ 62,000,000
Proceeds from sale of warrants | $		$ 22,000,000
Exercise price (usd per share)		$ 40.02	$ 39.70	$ 39.82		$ 39.70	$ 39.82
Convertible Debt | Notes Due 2023
Debt Instrument [Line Items]
Aggregate principal amount | $		$ 350,000,000	$ 350,000,000			$ 350,000,000
Interest rate, stated percentage		2.50%
Conversion price (usd per share)		$ 25.51
Conversion rate	0.0394809	0.0391961
Cash dividends declared per share (in usd per share)	$ 0.12
Convertible stock price (usd per share)			$ 25.31			$ 25.31
Exercise price (usd per share)			$ 39.70			$ 39.70
If-converted value in excess of principal | $						$ 319,000,000
Carrying value of the equity component | $			$ 120,000,000			$ 120,000,000
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Debt and Other Credit Facilit_7

Debt and Other Credit Facilities (Senior Notes) (Details) - Senior Notes - Notes Due 2028	Sep. 30, 2020 USD ($)
Debt Instrument [Line Items]
Aggregate principal amount	$ 250,000,000
Interest rate, stated percentage	4.75%
Net proceeds from offering fee	$ 245,000,000
Interest rate, stated redeem percentage	35%
Prior to September 30, 2023
Debt Instrument [Line Items]
Redemption price, percentage	100%
On or after September 30, 2023
Debt Instrument [Line Items]
Redemption price, percentage	104.75%
Change of control
Debt Instrument [Line Items]
Redemption price, percentage	101%

Debt and Other Credit Facilit_8

Debt and Other Credit Facilities (Letters of Credit, Surety Bonds and Guarantees) (Details) - USD ($)	Jun. 30, 2022	Nov. 18, 2021
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity		$ 1,954,000,000
Letters Of Credit Surety Bonds And Bank Guarantees
Debt Instrument [Line Items]
Letters of credit outstanding relate to joint venture operations	$ 85,000,000
Performance Letter of Credit Fee | Letter of Credit
Debt Instrument [Line Items]
Long-term line of credit	900,000,000
Performance Letter of Credit Fee | Letter of Credit | Committed Line Of Credit
Debt Instrument [Line Items]
Aggregate principal amount	1,000,000,000
Performance Letter of Credit Fee | Letter of Credit | Uncommitted Line Of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	450,000,000
Letters of credit outstanding, amount	242,000,000
Performance Letter of Credit Fee | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term line of credit	260,000,000
Letters of credit outstanding, amount	$ 49,000,000	$ 1,000,000,000

Debt and Other Credit Facilit_9

Debt and Other Credit Facilities (Nonrecourse Project Debt) (Details) £ in Millions	6 Months Ended
	Jun. 30, 2022 GBP (£) transporter
Minimum
Debt Instrument [Line Items]
Subordinated notes payable, interest rate	11.25%
Maximum
Debt Instrument [Line Items]
Subordinated notes payable, interest rate	16%
Class A 3.5% Index Linked Bond
Debt Instrument [Line Items]
Guaranteed secured bonds, percentage	3.50%
Class A 3.5% Index Linked Bond | United Kingdom, Pounds
Debt Instrument [Line Items]
Secured bonds	£ 56
Class B 5.9% Fixed Rate Bonds
Debt Instrument [Line Items]
Guaranteed secured bonds, percentage	5.90%
Class B 5.9% Fixed Rate Bonds | United Kingdom, Pounds
Debt Instrument [Line Items]
Secured bonds	£ 20.7
Nonrecourse Project Finance Debt
Debt Instrument [Line Items]
Number of heavy equipment transporters | transporter	91
Number of heavy equipment transporters term period (years)	22 years
Fasttrax Limited | Nonrecourse Project Finance Debt
Debt Instrument [Line Items]
Ownership percentage	50%

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Effective tax rate on income from operations	68%	(146.00%)
Effective tax rate excluding impact of equity adjustment	25%	25%
Effective income tax rate, estimated	25%
Deferred tax assets, valuation allowance	$ 199		$ 204
Income from foreign sources	510
Income from domestic sources	638
Liabilities for uncertain tax positions	$ 86		$ 89

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions, $ in Millions		1 Months Ended		43 Months Ended
	Oct. 09, 2020 USD ($)	Mar. 31, 2019 USD ($)	May 31, 2018 USD ($) lawsuit	Jun. 30, 2022 AUD ($)
Chadian Employee Class Action
Loss Contingencies [Line Items]
Number of class action cases | lawsuit			2
Damages awarded, value	$ 19	$ 34	$ 25
Claims in unpaid bonuses			$ 122
Chadian Employee Class Action | Provisional Award
Loss Contingencies [Line Items]
Damages awarded, value		$ 2
North West Rail Link Project
Loss Contingencies [Line Items]
Claims in unpaid bonuses				$ 301
North West Rail Link Project | Unincorporated Joint Venture
Loss Contingencies [Line Items]
Ownership percentage				33%

U.S. Government Matters (Detail

U.S. Government Matters (Details)	1 Months Ended	3 Months Ended
	Jan. 31, 2014 defendant subcontractor	Jun. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Mar. 31, 2011 USD ($)
Reserve For Potentially Disallowable Costs Incurred Under Government Contracts
United States Government Contract Work [Line Items]
Accrued reserve for unallowable costs		$ 72,000,000	$ 76,000,000
Howard qui tam
United States Government Contract Work [Line Items]
Estimate of possible loss				$ 628,000,000
Amount accrued		0
DOJFCA
United States Government Contract Work [Line Items]
Number of subcontractors | subcontractor	2
Number of defendants | defendant	3
Payments for legal settlements		$ 12,000,000

Claims and Accounts Receivable

Claims and Accounts Receivable (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Claims and accounts receivable	$ 30	$ 30	[1]
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Loss (Changes by Component) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022		Jun. 30, 2021
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	$ 1,578	$ 1,675		$ 1,683	[1]
Other comprehensive income adjustments before reclassifications				(30)		$ 16
Amounts reclassified from AOCL				15		22
Other comprehensive income (loss), net of tax	(20)	9	[2]	(15)		38	[2]
Ending balance	1,596	1,479		1,596		1,479
Accumulated foreign currency translation adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance				(296)		(291)
Other comprehensive income adjustments before reclassifications				(53)		8
Amounts reclassified from AOCL				0		3
Other comprehensive income (loss), net of tax				(53)		11
Ending balance	(349)	(280)		(349)		(280)
Accumulated pension liability adjustments
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance				(581)		(764)
Other comprehensive income adjustments before reclassifications				0		0
Amounts reclassified from AOCL				10		13
Other comprehensive income (loss), net of tax				10		13
Ending balance	(571)	(751)		(571)		(751)
Changes in fair value of derivatives
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance				(4)		(28)
Other comprehensive income adjustments before reclassifications				23		8
Amounts reclassified from AOCL				5		6
Other comprehensive income (loss), net of tax				28		14
Ending balance	24	(14)		24		(14)
AOCL
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning balance	(876)	(1,054)		(881)		(1,083)
Other comprehensive income (loss), net of tax	(20)	9		(15)		38
Ending balance	$ (896)	$ (1,045)		$ (896)		$ (1,045)
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Loss (Reclassification out of AOCI) (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax benefit	$ (33)	$ (40)	[1]	$ (52)	$ (57)	[1]
Foreign currency hedge and interest rate swap settlements	5	2	[1]	5	(1)	[1]
Net income (loss)	$ 94	$ (146)	[2]	24	(96)	[2]
Reclassification out of Accumulated Other Comprehensive Income | Accumulated foreign currency translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification of foreign currency adjustments				0	(3)
Tax benefit				0	0
Net income (loss)				0	(3)
Reclassification out of Accumulated Other Comprehensive Income | Accumulated pension liability adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax benefit				3	3
Amortization of actuarial loss				(13)	(16)
Net income (loss)				(10)	(13)
Reclassification out of Accumulated Other Comprehensive Income | Changes in fair value of derivatives
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax benefit				1	2
Foreign currency hedge and interest rate swap settlements				(6)	(8)
Net income (loss)				$ (5)	$ (6)
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.[2]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Share Repurchases (Narrative) (

Share Repurchases (Narrative) (Details) - USD ($)	Jun. 30, 2022	Feb. 19, 2020	Dec. 31, 2019	Feb. 25, 2014
Equity [Abstract]
Stock repurchase program, authorized amount		$ 350,000,000		$ 350,000,000
Remaining authorized repurchase amount	$ 160,000,000		$ 160,000,000
Additional amount authorized for repurchase program		$ 190,000,000

Share Repurchases (Details)

Share Repurchases (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Feb. 19, 2020	Feb. 25, 2014
Equity, Class of Treasury Stock [Line Items]
Value of common stock repurchases	$ 41,000,000	$ 28,000,000	$ 74,000,000	$ 32,000,000
Number of shares (in shares)	11,584	11,873	182,523	141,249
Average price per share (in usd per share)	$ 45.31	$ 40.97	$ 48.48	$ 31.90
Value of common stock repurchases	$ 1,000,000	$ 0	$ 9,000,000	$ 4,000,000
Number of shares (in shares)	834,917	693,157	1,525,188	822,533
Average price per share (in usd per share)	$ 48.51	$ 40.89	$ 48.40	$ 39.35
Value of common stock repurchases	$ 41,000,000	$ 28,000,000	$ 74,000,000	$ 32,000,000
Stock repurchase program, authorized amount					$ 350,000,000	$ 350,000,000
Share Repurchase Program Twenty Fourteen
Equity, Class of Treasury Stock [Line Items]
Number of Shares (in shares)	823,333	681,284	1,342,665	681,284
Average Price per Share (in usd per share)	$ 48.56	$ 40.89	$ 48.39	$ 40.89
Value of common stock repurchases	$ 40,000,000	$ 28,000,000	$ 65,000,000	$ 28,000,000

Income (loss) per Share (Schedu

Income (loss) per Share (Schedule Of Basic And Diluted Weighted Average Common Shares Outstanding) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021		Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Basic net income (loss) attributable to KBR	$ 94	$ (149)		$ 23	$ (100)
Reversal of Convertible Debt interest expense	1	0		3	0
Diluted net income (loss) attributable to KBR	$ 95	$ (149)		$ 26	$ (100)
Basic weighted average common shares outstanding (in shares)	139	141	[1]	139	141	[1]
Convertible debt (in shares)	14	0		14	0
Warrant (in shares)	3	0		3	0
Diluted weighted average common shares outstanding (in shares)	156	141	[1]	156	141	[1]
Basic (in usd per share)	$ 0.68	$ (1.06)	[1]	$ 0.17	$ (0.71)	[1]
Diluted (in usd per share)	$ 0.61	$ (1.06)	[1]	$ 0.17	$ (0.71)	[1]
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Income (loss) per Share (Narrat

Income (loss) per Share (Narrative) (Details) - USD ($) $ / shares in Units, shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Nov. 15, 2018
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Exercise price (usd per share)	$ 39.70	$ 39.82	$ 39.70	$ 39.82	$ 40.02
Undistributed earnings (loss) allocated to participating securities, diluted	$ 400,000	$ 0	$ 100,000	$ 0
Warrant (in shares)	3	0	3	0
Convertible debt (in shares)	14	0	14	0
Warrant
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options and restricted stock awards (in shares)	11.1	13.8	11.2	13.8
Stock options and restricted stock award
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options and restricted stock awards (in shares)	0.5	1	0.5	1.2
Convertible debt
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Stock options and restricted stock awards (in shares)		13.8		13.8
Notes Due 2023 | Convertible Debt
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Convertible stock price (usd per share)	$ 25.31		$ 25.31
Exercise price (usd per share)	$ 39.70		$ 39.70

Fair Value of Financial Instr_3

Fair Value of Financial Instruments and Risk Management (Carrying Value and Fair Value) (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Carrying Value | Secured Debt | Term Loan A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	$ 415	$ 441
Carrying Value | Secured Debt | Term Loan B
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	508	511
Carrying Value | Convertible Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	350	350
Carrying Value | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	250	250
Carrying Value | Senior Credit Facility | Revolving Credit Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	260	364
Carrying Value | Nonrecourse project debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	1	2
Fair Value | Secured Debt | Term Loan A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	415	441
Fair Value | Secured Debt | Term Loan B
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	506	514
Fair Value | Convertible Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	669	669
Fair Value | Senior Notes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	222	256
Fair Value | Senior Credit Facility | Revolving Credit Facility
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	260	364
Fair Value | Nonrecourse project debt
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt instrument, fair value disclosure	$ 1	$ 2

Fair Value of Financial Instr_4

Fair Value of Financial Instruments and Risk Management (Foreign Currency Risk) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]
Maximum length of time hedged in balance sheet hedge	18 days
Maximum length of time hedged in cash flow hedge	23 months
Balance Sheet Hedge
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]
Derivative, notional amount	$ 173
Cash Flow Hedging
Risks Inherent in Servicing Assets and Servicing Liabilities [Line Items]
Cash flow hedge	$ 7

Fair Value of Financial Instr_5

Fair Value of Financial Instruments and Risk Management (Summary of Changes in Fair Value of Balance Sheet Hedges) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Balance Sheet Hedges - Fair Value	$ 5	$ (1)	$ 5	$ (1)
Balance Sheet Position - Remeasurement	(1)	1	(1)	(5)
Net gain (loss)	$ 4	$ 0	$ 4	$ (6)

Fair Value of Financial Instr_6

Fair Value of Financial Instruments and Risk Management (Interest Rate Risk) (Details) - Interest Rate Swap - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021	Mar. 31, 2020	Oct. 31, 2018
Derivatives, Fair Value [Line Items]
Derivative, notional amount			$ 400	$ 500
Interest rate derivative assets (liabilities), net	$ 30	$ (3)
Unrealized gain (loss) on derivatives	(30)	(3)
Other Assets
Derivatives, Fair Value [Line Items]
Interest rate derivative assets (liabilities), net	24	7
Other Current Assets
Derivatives, Fair Value [Line Items]
Interest rate derivative assets (liabilities), net	8
Other Current Liabilities
Derivatives, Fair Value [Line Items]
Interest rate derivative assets (liabilities), net	$ (2)	$ (10)
LIBOR
Derivatives, Fair Value [Line Items]
Fixed interest rate			0.965%	3.055%

Fair Value of Financial Instr_7

Fair Value of Financial Instruments and Risk Management (Credit Losses) (Details) - Sustainable Technology Solutions $ in Millions	Jun. 30, 2022 USD ($)
Contract with Customer, Asset, Past Due [Line Items]
Accounts receivable and contract assets, net of allowances	$ 321
Allowance for accounts receivable and contract assets	$ 11
Accounts receivable, percent outstanding less than 90 days	87%

Fair Value of Financial Instr_8

Fair Value of Financial Instruments and Risk Management (Sale of Receivables) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Fair Value Disclosures [Abstract]
Sale of receivables	$ 1,782
Receivables sold	$ 1,762

Fair Value of Financial Instr_9

Fair Value of Financial Instruments and Risk Management (Sale of Receivables - Third-party Financial Institutions) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Transfer of Financial Assets Accounted for as Sales [Roll Forward]
Beginning balance	$ 481	$ 112
Sale of receivables	1,782	1,154
Settlement of receivables	(2,141)	(1,147)
Outstanding balances sold to financial institutions	$ 122	$ 119

Fair Value of Financial Inst_10

Fair Value of Financial Instruments and Risk Management (Cost Method Investments) (Details) $ in Millions	1 Months Ended	3 Months Ended			6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($) tranche	Jun. 30, 2021 USD ($)	[1]	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	[1]	Dec. 31, 2021 USD ($)
Equity Securities without Readily Determinable Fair Value [Line Items]
Unrealized gain on cost method investment		$ 16	$ 0		$ 16	$ 0
Mura
Equity Securities without Readily Determinable Fair Value [Line Items]
Additional investment in equity securities without readily determinable fair value	$ 100
Number of tranches | tranche		2
Ownership percentage	0.185
Unrealized gain on cost method investment	$ 16
Carrying value of investment	$ 85	$ 85			$ 85			$ 11
[1]As adjusted for the adoption of ASU 2020-06 using the full retrospective method.

Uncategorized Items - kbr-20220

Label	Element	Value
Accounting Standards Update [Extensible Enumeration]	us-gaap_AccountingStandardsUpdateExtensibleList	Accounting Standards Update 2020-06 [Member]