CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net (loss) income		$ (171)	$ 79
Non-cash items included in net (loss) income:
Loss on disposal of APP		101
Depreciation and amortization		137	80
Debt issuance cost amortization		21	17
Stock-based compensation charges		11	28
Deferred taxes		(1)	(100)
Changes in operating assets and liabilities, net of effects of businesses acquired:
Accounts receivable		(164)	278
Contracts in progress, net of advance billings on contracts		(745)	(141)
Accounts payable		545	129
Other current and non-current assets		(71)	12
Investments in unconsolidated affiliates			1
Other current and non-current liabilities		(112)	52
Total cash (used in) provided by operating activities		(449)	435
Cash flows from investing activities:
CB&I consideration, net of cash of $498 acquired			(2,374)
Proceeds from asset disposals, net		83	2
Purchases of property, plant and equipment	[1]	(33)	(43)
Advances related to proportionately consolidated consortiums		(234)	(45)
Investments in unconsolidated affiliates		(1)	(3)
Other			2
Total cash used in investing activities		(185)	(2,461)
Cash flows from financing activities:
Revolving credit facility borrowings		1,699
Revolving credit facility repayments		(1,320)
Proceeds from issuance of long-term debt			3,560
Repayment of debt and finance lease obligations		(19)	(515)
Advances related to equity method joint ventures and proportionately consolidated consortiums		190	(42)
Debt and letter of credit issuance costs			(208)
Debt extinguishment costs			(10)
Repurchase of common stock		(4)	(14)
Distribution to joint venture member		(5)
Total cash provided by financing activities		573	2,771
Effects of exchange rate changes on cash, cash equivalents and restricted cash		(2)	(15)
Net (decrease) increase in cash, cash equivalents and restricted cash		(63)	730
Cash, cash equivalents and restricted cash at beginning of period		845	408
Cash, cash equivalents and restricted cash at end of period		782	$ 1,138
Structured Equipment Financing [Member]
Cash flows from financing activities:
Revolving credit facility borrowings		$ 32

[1] Capital expenditures reported represent cash purchases. At June 30, 2019 and 2018, we had approximately $47 million and $14 million, respectively, of accrued and unpaid capital expenditures reported in property, plant and equipment and accrued liabilities.