Debt - Additional Information (Detail)											1 Months Ended	3 Months Ended		12 Months Ended
		Feb. 26, 2020 USD ($)	Jan. 23, 2020 USD ($)	Dec. 01, 2019 USD ($)	Nov. 01, 2019 USD ($)	Oct. 21, 2019 USD ($) Subsidiary	Oct. 30, 2018 USD ($)	May 10, 2018 USD ($)	Apr. 18, 2018 USD ($)	Sep. 30, 2010 USD ($) Installment	Dec. 31, 2019 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	May 08, 2018 USD ($)	Dec. 18, 2017
Debt Instrument [Line Items]
Letter of credit facility fee percentage														0.50%
Letter of credit outstanding fronting fee percentage											0.25%	0.25%		0.25%
Aggregate percentage of equity will receive by lenders upon funding						15.00%
Debt Instrument Scheduled Interest Payment Due				$ 69,000,000	$ 69,000,000
Letter of credit participation fee percentage											5.00%	5.00%		5.00%
Redemption price percentage				35.00%
Minimum percentage of aggregate principle amount called up for immediate repayment upon default of scheduled interest payment					25.00%
Failure to make interest payment due				$ 69,000,000							$ 69,000,000	$ 69,000,000		$ 69,000,000
Percentage of interest acquired in subsidiary																		53.00%
Future maturities 2020											$ 23,000,000	$ 23,000,000		23,000,000
Revolving credit facility borrowings														$ 2,451,000,000
Debtor in possession of financing interest rate percentage											9.00%	9.00%		9.00%
Debtor in possession financing additional interest rate on borrowings in event of default											2.00%	2.00%		2.00%
Payments of debt issuance costs														$ 160,000,000	$ 217,000,000	$ 21,000,000
Interest expense recognized											$ 316,000,000	$ 316,000,000
JRM Mexico [Member]
Debt Instrument [Line Items]
Receivables sold														65,000,000
Factoring costs trade receivables														$ 2,000,000
Percentage of receivables sold withheld and received														10.00%
Cash received from receivables, net of fees and amounts withheld														$ 57,000,000
Fiscal Quarters Ending December 31, 2019 through June 30, 2020 [Member]
Debt Instrument [Line Items]
Minimum fixed charge coverage ratio														0.70%
Fiscal Quarters Ending September 30, 2020 and December 31, 2020 [Member]
Debt Instrument [Line Items]
Minimum fixed charge coverage ratio														1.10%
Fiscal Quarters Ending March 31, 2021 [Member]
Debt Instrument [Line Items]
Minimum fixed charge coverage ratio														1.20%
Maximum permitted leverage ratio											5.30%	5.30%		5.30%
Fiscal Quarters Ending June 30, 2021 [Member]
Debt Instrument [Line Items]
Minimum fixed charge coverage ratio														1.40%
Maximum permitted leverage ratio											4.80%	4.80%		4.80%
Fiscal Quarters Ending September 30, 2021 and December 31, 2021 [Member]
Debt Instrument [Line Items]
Minimum fixed charge coverage ratio														1.30%
Fiscal Quarter Ending after December 31, 2021 [Member]
Debt Instrument [Line Items]
Minimum fixed charge coverage ratio														1.50%
Maximum permitted leverage ratio											3.25%	3.25%		3.25%
Fiscal Quarter Ending December 31, 2019 [Member]
Debt Instrument [Line Items]
Maximum permitted leverage ratio											11.70%	11.70%		11.70%
Fiscal Quarter Ending March 31, 2020 [Member]
Debt Instrument [Line Items]
Maximum permitted leverage ratio											11.60%	11.60%		11.60%
Fiscal Quarter Ending June 30, 2020 [Member]
Debt Instrument [Line Items]
Maximum permitted leverage ratio											10.30%	10.30%		10.30%
Fiscal Quarter Ending September 30, 2020 [Member]
Debt Instrument [Line Items]
Maximum permitted leverage ratio											6.50%	6.50%		6.50%
Fiscal Quarter Ending December 31, 2020 [Member]
Debt Instrument [Line Items]
Maximum permitted leverage ratio											6.00%	6.00%		6.00%
Fiscal Quarters Ending September 30, 2021 [Member]
Debt Instrument [Line Items]
Maximum permitted leverage ratio											4.70%	4.70%		4.70%
Fiscal Quarters Ending December 31, 2021 [Member]
Debt Instrument [Line Items]
Maximum permitted leverage ratio											4.80%	4.80%		4.80%
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Debt Instrument [Line Items]
Interest rate derivatives																	$ 1,940,000,000
Financial Letters of Credit [Member]
Debt Instrument [Line Items]
Letter of credit participation fee percentage											4.25%	4.25%		4.25%
Performance Stand By Letters Of Credit [Member]
Debt Instrument [Line Items]
Letter of credit participation fee percentage											2.125%	2.125%		2.125%
Maximum [Member]
Debt Instrument [Line Items]
Stock and other equity percentage											100.00%	100.00%		100.00%
Maximum [Member] | JRM Mexico [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														2.00%
Maximum [Member] | Financial Letters of Credit [Member]
Debt Instrument [Line Items]
Letter of credit participation fee percentage											4.25%	4.25%		4.25%
Maximum [Member] | Performance Stand By Letters Of Credit [Member]
Debt Instrument [Line Items]
Letter of credit participation fee percentage											2.125%	2.125%		2.125%
Minimum [Member] | JRM Mexico [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														1.40%
Minimum [Member] | Financial Letters of Credit [Member]
Debt Instrument [Line Items]
Letter of credit participation fee percentage											3.75%	3.75%		3.75%
Minimum [Member] | Performance Stand By Letters Of Credit [Member]
Debt Instrument [Line Items]
Letter of credit participation fee percentage											1.875%	1.875%		1.875%
Interbank Equilibrium Interest Rate [Member] | Maximum [Member] | Mexico [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														1.70%
Interbank Equilibrium Interest Rate [Member] | Minimum [Member] | Mexico [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														1.40%
Level 3 [Member]
Debt Instrument [Line Items]
Fair value of embedded derivatives	[1]										$ 28,000,000	$ 28,000,000		$ 28,000,000
Morgan Stanley Senior Funding Inc
Debt Instrument [Line Items]
Senior secured long-term borrowing								$ 50,000,000
New LC Facility [Member]
Debt Instrument [Line Items]
Debt instrument issued or deemed issued											200,000,000	200,000,000		200,000,000
Letter of Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity under credit facility											188,000,000	188,000,000		188,000,000
Senior secured long-term borrowing											1,440,000,000	1,440,000,000		$ 1,440,000,000
Facility expire month and year														2023-05
Letters of credit outstanding											1,252,000,000	1,252,000,000		$ 1,252,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity under credit facility											5,000,000	5,000,000		5,000,000
Senior secured long-term borrowing											1,000,000,000.0	1,000,000,000.0		$ 1,000,000,000.0
Facility expire month and year														2023-05
Borrowing outstanding											801,000,000	801,000,000		$ 801,000,000
Maximum borrowing outstanding														801,000,000
Letters of credit outstanding											194,000,000	194,000,000		$ 194,000,000
Interest expense recognized											18,000,000
Revolving Credit Facility [Member] | Eurodollar Rate [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														4.25%
Revolving Credit Facility [Member] | Eurodollar Rate [Member] | Maximum [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														4.25%
Revolving Credit Facility [Member] | Eurodollar Rate [Member] | Minimum [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														3.75%
Revolving Credit Facility [Member] | Base Rate
Debt Instrument [Line Items]
Base rate and applicable margin														3.25%
Revolving Credit Facility [Member] | Base Rate | Maximum [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														3.25%
Revolving Credit Facility [Member] | Base Rate | Minimum [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														2.75%
Financial Letters of Credit [Member]
Debt Instrument [Line Items]
Letters of credit outstanding											49,000,000	49,000,000		$ 49,000,000
Structured Equipment Financing [Member]
Debt Instrument [Line Items]
Available capacity under credit facility											37,000,000	37,000,000		$ 37,000,000
Debt instrument maturity month and year														2020-01
Revolving credit facility borrowings														$ 32,000,000
New Term Facility [Member]
Debt Instrument [Line Items]
Borrowings outstanding prior to bifurcation of embedded derivatives											800,000,000	800,000,000		$ 800,000,000
Term Facility [Member]
Debt Instrument [Line Items]
Senior secured long-term borrowing																	2,260,000,000
Term Facility [Member] | Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Debt Instrument [Line Items]
Interest rate derivatives																	$ 1,940,000,000
Term Facility [Member] | Eurodollar Rate [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														5.00%
Term Facility [Member] | Base Rate
Debt Instrument [Line Items]
Base rate and applicable margin														4.00%
Term Facility [Member] | Floor Rate [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														1.00%
Senior Secured Credit Facility [Member] | Term Facility Letters of Credit [Member]
Debt Instrument [Line Items]
Senior secured long-term borrowing								310,000,000
Term Facility [Member]
Debt Instrument [Line Items]
Term facility, borrowings outstanding Amount											2,200,000,000	2,200,000,000		$ 2,200,000,000	2,243,000,000
Interest expense recognized											87,000,000
Second-lien Notes [Member]
Debt Instrument [Line Items]
Aggregate principal amount redeemed														$ 500,000,000
Debt instrument interest rate														8.00%
Senior Notes [Member]
Debt Instrument [Line Items]
Issue of second-lien seven-year senior secured notes									$ 1,300,000,000
Debt instrument maturity month and year									2024-05
Redemption price percentage									100.00%
Interest expense recognized											52,000,000
Senior Notes [Member] | One or More Qualified Equity Offerings [Member]
Debt Instrument [Line Items]
Redemption price percentage									110.625%
Senior Notes [Member] | Maximum [Member]
Debt Instrument [Line Items]
Redemption price percentage									35.00%
Superpriority Credit Agreement [Member]
Debt Instrument [Line Items]
Number of subsidiaries | Subsidiary						3
Available capacity under credit facility						$ 1,700,000,000
Fair value of embedded derivatives						$ 60,000,000
Embedded Derivative Liability, Valuation Technique [Extensible List]						us-gaap:ValuationTechniqueDiscountedCashFlowMember
Debt instrument maximum cost adjustments amount													$ 260,000,000
Percentage of delivered approved budget less than projected amount						20.00%
Percentage of delivered approved budget exceeds projected amount						20.00%
Percentage of delivered approved budget exceeds projected amount for first week						20.00%
Debt instrument covenant one liquidity						$ 100,000,000
Debt instrument covenant three minimum liquidity						75,000,000
Superpriority Credit Agreement [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt instrument covenant minimum liquidity						75,000,000
Superpriority Credit Agreement [Member] | Level 3 [Member]
Debt Instrument [Line Items]
Fair value of embedded derivatives											28,000,000	28,000,000		$ 28,000,000
Superpriority Credit Agreement [Member] | Tranche A [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital						650,000,000
Superpriority Credit Agreement [Member] | New LC Facility [Member]
Debt Instrument [Line Items]
Available capacity under credit facility						$ 400,000,000
Letter of credit facility fee percentage						1.50%
Letter of credit outstanding fronting fee percentage						0.50%
Excess cash flow						75.00%
Superpriority Credit Agreement [Member] | New LC Facility [Member] | First Six Months After Closing [Member]
Debt Instrument [Line Items]
Percentage of principal amount of term loan to be repaid						3.00%
Superpriority Credit Agreement [Member] | New LC Facility [Member] | Maximum [Member] | First Six Months After Closing [Member]
Debt Instrument [Line Items]
Percentage of principal amount of term loan to be repaid						3.00%
Superpriority Credit Agreement [Member] | New LC Facility [Member] | Base Rate
Debt Instrument [Line Items]
Base rate and applicable margin						9.00%
Superpriority Credit Agreement [Member] | New LC Facility [Member] | Tranche A [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital						$ 100,000,000
Superpriority Credit Agreement [Member] | New Term Facility [Member]
Debt Instrument [Line Items]
Available capacity under credit facility						$ 1,300,000,000
Interest expense recognized											130,000,000
Superpriority Credit Agreement [Member] | New Term Facility [Member] | Eurodollar Rate [Member]
Debt Instrument [Line Items]
Base rate and applicable margin						10.00%
Superpriority Credit Agreement [Member] | New Term Facility [Member] | Base Rate
Debt Instrument [Line Items]
Base rate and applicable margin						9.00%
Superpriority Credit Agreement [Member] | New Term Facility [Member] | Tranche A [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital						$ 550,000,000
Superpriority Credit Facility [Member] | Tranche B [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital				350,000,000
Superpriority Credit Facility [Member] | New LC Facility [Member] | Tranche B [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital				100,000,000
Superpriority Credit Facility [Member] | New Term Facility [Member] | Tranche B [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital				$ 250,000,000
Credit Agreement [Member]
Debt Instrument [Line Items]
Senior secured long-term borrowing								$ 4,700,000,000
Payments of debt issuance costs														160,000,000
Credit Agreement [Member] | Letter of Credit Facility [Member]
Debt Instrument [Line Items]
Excess cash flow								75.00%
Senior secured long-term borrowing								$ 1,440,000,000
Credit Agreement [Member] | Term Facility Letters of Credit [Member]
Debt Instrument [Line Items]
Letter of credit facility fee percentage								3.00%
Credit Agreement [Member] | Term Facility Letters of Credit [Member] | Maximum [Member]
Debt Instrument [Line Items]
Senior secured long-term borrowing											$ 319,700,000	$ 319,700,000		$ 319,700,000
Credit Agreement [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Senior secured long-term borrowing								$ 1,000,000,000.0
Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] | Financial Letters of Credit [Member]
Debt Instrument [Line Items]
Available credit facility for issuance								200,000,000
Credit Agreement [Member] | Term Facility [Member]
Debt Instrument [Line Items]
Senior secured long-term borrowing								$ 2,260,000,000
Term facility maturity period								7 years
Weighted average interest rate											7.70%	7.70%		7.70%
Debt instrument periodic payment														$ 5,650,000
Credit Agreement [Member] | Term Facility [Member] | Letter of Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity under credit facility											$ 5,000,000	$ 5,000,000		5,000,000
Debt instrument issued or deemed issued											305,000,000	305,000,000		305,000,000
Credit Agreement [Member] | Term Facility [Member] | Financial Letters of Credit
Debt Instrument [Line Items]
Debt instrument issued or deemed issued											49,000,000	49,000,000		$ 49,000,000
Credit Agreement [Member] | Senior Secured Credit Facility [Member] | Letter of Credit Facility [Member]
Debt Instrument [Line Items]
Deposited cash collateral account to secure reimbursement obligations								$ 319,300,000
Credit Agreement [Member] | Senior Secured Credit Facility [Member] | Term Facility Letters of Credit [Member] | Maximum [Member]
Debt Instrument [Line Items]
Senior secured long-term borrowing								$ 310,000,000.0
Debt Instrument Variable Rate Administrative Agent's Prime Rate [Member] | Term Facility [Member] | Eurodollar Rate [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														1.00%
Debt Instrument Variable Rate Administrative Agent's Prime Rate [Member] | Term Facility [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Base rate and applicable margin														0.50%
Letter of Credit Agreement [Member] | Letter of Credit Facility [Member]
Debt Instrument [Line Items]
Available capacity under credit facility							$ 230,000,000
Debt instrument issued or deemed issued															228,000,000
Available credit facility for issuance															2,000,000
Facility expire month and year							2021-12
Letter Of Credit Agreement Amendment | Letter of Credit Facility [Member]
Debt Instrument [Line Items]
Letter of credit participation fee percentage						5.00%
North Ocean Construction Financing [Member]
Debt Instrument [Line Items]
Term facility, borrowings outstanding Amount															$ 16,000,000
North Ocean Construction Financing [Member] | Secured Debt [Member] | North Ocean 105 [Member]
Debt Instrument [Line Items]
Percentage of interest acquired in subsidiary										75.00%
Debt instrument frequency of installments														semiannual
Number of semiannual installments of principal repayment | Installment										17
Principal repayment										$ 4,000,000
Debt instrument date of first installment payment										Oct. 01, 2012
Principal repayment, description														The financing agreement requires principal repayment in 17 consecutive semiannual installments of approximately $4 million, which commenced on October 1, 2012.
Future maturities 2020											8,000,000	8,000,000		$ 8,000,000
DIP Credit Agreement [Member]
Debt Instrument [Line Items]
Available capacity under credit facility											2,810,000,000	2,810,000,000		$ 2,810,000,000
Percentage of delivered approved budget less than projected amount														15.00%
Percentage of delivered approved budget exceeds projected amount														15.00%
Percentage of delivered approved budget exceeds projected amount for first week														20.00%
Date entered by the Bankruptcy Court														Feb. 24, 2020
Percentage of delivered approved budget exceeds projected amount for third week														15.00%
Percentage of vendor disbursement and JV infusions delivered approved budget exceeds projected amount														15.00%
Percentage of vendor disbursements and JV infusions delivered approved budget if projected amount exceed for first week														20.00%
Percentage of vendor disbursements and JV infusions delivered approved budget exceeds projected amount for third week														15.00%
DIP Credit Agreement [Member] | Letter of Credit Facility [Member]
Debt Instrument [Line Items]
Letters of credit outstanding											743,000,000	743,000,000		$ 743,000,000
DIP Credit Agreement [Member] | Letter of Credit Facility [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Revolving credit facility borrowings		$ 243,000,000	$ 300,000,000
DIP Credit Agreement [Member] | Letter of Credit Facility [Member] | Tranche A [Member] | Available at Closing [Member]
Debt Instrument [Line Items]
Letters of credit outstanding											300,000,000	300,000,000		300,000,000
DIP Credit Agreement [Member] | Letter of Credit Facility [Member] | Tranche B [Member] | Available upon Entry of Final DIP Order [Member]
Debt Instrument [Line Items]
Letters of credit outstanding											243,000,000	243,000,000		243,000,000
DIP Credit Agreement [Member] | Letter of Credit Facility [Member] | Tranche C [Member]
Debt Instrument [Line Items]
Letters of credit outstanding											200,000,000	200,000,000		200,000,000
DIP Credit Agreement [Member] | Term Facility [Member] | Subsequent Event [Member]
Debt Instrument [Line Items]
Revolving credit facility borrowings		$ 650,000,000	550,000,000
Payments of debt issuance costs			$ 87,000,000
DIP Credit Agreement [Member] | Term Loan Facility [Member]
Debt Instrument [Line Items]
Available capacity under credit facility											2,067,000,000	2,067,000,000		2,067,000,000
DIP Credit Agreement [Member] | Term Loan Facility [Member] | Tranche A [Member] | Available at Closing [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital											550,000,000	550,000,000		550,000,000
DIP Credit Agreement [Member] | Term Loan Facility [Member] | Tranche B [Member] | Available upon Entry of Final DIP Order [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital											650,000,000	650,000,000		650,000,000
DIP Credit Agreement [Member] | Term Loan Facility [Member] | Tranche C [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital											823,000,000	823,000,000		823,000,000
DIP Credit Agreement [Member] | Term Loan Facility [Member] | Tranche D [Member]
Debt Instrument [Line Items]
Line of credit facility available for capital											$ 44,000,000	$ 44,000,000		$ 44,000,000

[1] The fair value of the embedded derivatives, discussed in Note 13, Debt, is determined using a discounted cash flow approach and is classified as Level 3 because the inputs to the fair value measurement of the embedded derivatives are unobservable and reflect our estimates of forward yield, using a risk-free rate and a USD Energy CCC yield curve.