Represents the increase (decrease) in the estimated project cost based on forecast revisions.

No definition available.

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- Definition

Represents the increase (decrease) in estimated petrochemical project cost based on forecast revisions, in dollars per diluted share.

+ References

No definition available.

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- Definition

The loss per diluted share of the amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

+ References

No definition available.

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- Definition

Represents the number of subcontracts.

+ References

No definition available.

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- Definition

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

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-Name Accounting Standards Codification
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- Definition

The amount of loss pertaining to the specified contingency that was charged against earnings in the period, including the effects of revisions in previously reported estimates.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
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- Definition

Return of or reimbursements received in relation to direct costs and expenses previously paid or incurred.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
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-Section S99
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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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-Name Accounting Standards Codification
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- Definition

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.

+ References

No definition available.

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Operations by Business Segment and Geographic Area - Additional Operating Information (Details) $ / shares in Units, $ in Millions	1 Months Ended	12 Months Ended
	May 31, 2014 USD ($)	Dec. 31, 2017 USD ($) item $ / shares	Dec. 31, 2016 USD ($) $ / shares	Dec. 31, 2015 USD ($) $ / shares
Westinghouse
Segment reporting information
Number of subcontracts \| item		2
V.C. Summer
Segment reporting information
Accounts receivable		$ 66
Plant Vogtle
Segment reporting information
Accounts receivable		2
Nu Scale Power \| Cost-sharing agreement, research and development activities
Segment reporting information
Qualified expenses reimbursed	$ 217
Energy & Chemicals
Segment reporting information
Effect of forecast revision on estimated project cost		$ 44
Effect of forecast revision on estimated project cost, in dollars per diluted share \| $ / shares		$ 0.20
Mining, Industrial, Infrastructure & Power \| Forecast revisions for gas-fired power plant in Brunswick County, Virginia
Segment reporting information
Loss				$ 60
Loss per diluted share (in dollars per share) \| $ / shares				$ 0.26
U.S. \| Energy & Chemicals
Segment reporting information
Effect of forecast revision on estimated project cost		$ 260	$ 265
Effect of forecast revision on estimated project cost, in dollars per diluted share \| $ / shares			$ 1.20
U.S. \| Mining, Industrial, Infrastructure & Power
Segment reporting information
Effect of forecast revision on estimated project cost		$ 260
Effect of forecast revision on estimated project cost, in dollars per diluted share \| $ / shares		$ 1.18
Reportable segments \| Mining, Industrial, Infrastructure & Power \| Nu Scale Power
Segment reporting information
Research and development expense		$ 76	$ 92	$ 80
Reportable segments \| Mining, Industrial, Infrastructure & Power \| Nu Scale Power \| Cost-sharing agreement, research and development activities \| U.S. Department of Energy \| Total cost of revenue
Segment reporting information
Qualified expenses reimbursed		$ 48	$ 57	$ 65