Debt - Schedule of Uncommitted Bilateral Credit Facilities and Surety Bond Arrangements (Detail) - USD ($) $ in Millions		Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Letters of credit outstanding		$ 194
Uncommitted Bilateral Letter of Credit Facilities and Surety Bond Arrangements [Member] | Bank Guarantee and Bilateral Letter of Credit [Member]
Debt Instrument [Line Items]
Available capacity under credit facility	[1]	1,688	$ 1,842
Letters of credit outstanding	[1]	1,098	1,293
Uncommitted Bilateral Letter of Credit Facilities and Surety Bond Arrangements [Member] | Surety Bonds [Member]
Debt Instrument [Line Items]
Available capacity under credit facility	[2]	747	835
Letters of credit outstanding	[2]	$ 625	$ 601

[1] Approximately $175 million of this capacity is available only upon provision of an equivalent amount of cash collateral.

[2] Excludes approximately $272 million of surety bonds maintained on behalf of CB&I’s former Capital Services Operations, which were sold to CSVC Acquisition Corp (“CSVC”) in June 2017. We also continue to maintain guarantees on behalf of CB&I’s former Capital Services Operations business, and we are entitled to an indemnity from CSVC for the surety bonds and guarantees.