Business Combination - Summary of Final Purchase Price Allocation (Schedule of Other Intangible Assets ) (Parenthetical) (Detail) - Chicago Bridge & Iron Company N.V. [Member] $ in Millions	May 10, 2018 USD ($)
Finite Lived Intangible Assets [Line Items]
Fair value	$ 1,063
Process Technologies [Member]
Finite Lived Intangible Assets [Line Items]
Fair value	$ 511
Weighted Average Life	27 years
Process Technologies [Member] \| Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Useful Life Range	10 years
Process Technologies [Member] \| Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Useful Life Range	30 years
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Fair value	$ 400
Weighted Average Life	12 years
Trade Names [Member] \| Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Useful Life Range	10 years
Trade Names [Member] \| Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Useful Life Range	20 years
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Fair value	$ 126
Weighted Average Life	10 years
Customer Relationships [Member] \| Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Useful Life Range	4 years
Customer Relationships [Member] \| Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Useful Life Range	11 years
Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Fair value	$ 26
Useful Life Range	10 years
Weighted Average Life	10 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Publisher FASB
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-Topic 350
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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 350
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