Change in operating earnings due to change in accounting estimate under the cumulative catch-up method of accounting.

No definition available.

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- Definition

Change in diluted earnings per share due to change in accounting estimate under the cumulative catch-up method of accounting.

+ References

No definition available.

+ Details

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- Definition

The increase (decrease) during a period in assets arising from the contracting of goods and services, net of the contract liabilities.

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No definition available.

+ Details

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- Definition

Percentage of revenue expected to be recognized in year one.

+ References

No definition available.

+ Details

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- Definition

Percentage of revenue expected to be recognized in year three.

+ References

No definition available.

+ Details

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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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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

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- References

No definition available.

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- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045

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Revenue (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Revenue Recognition and Deferred Revenue [Abstract]
Revenue, Remaining Performance Obligation, Amount		$ 23,000
Revenue, performance obligation, recognition percentage, year one		30.00%
Revenue, performance obligation, recognition percentage, year three		40.00%
Increase (Decrease) in Net Contract Assets		$ 59
Contract with Customer, Liability, Revenue Recognized		85
Contracts Accounted for under Percentage of Completion
Change in Accounting Estimate [Line Items]
Increase (decrease) in operating income due to net cumulative catch-up adjustments		$ 110	$ 204	$ 224
Change in Accounting Estimate, Effect of Change on Operating Results, Per Share, Diluted		$ 1.99	$ 2.90	$ 3.08
Ingalls contract [Member]
Change in Accounting Estimate [Line Items]
Increase (decrease) in operating income due to net cumulative catch-up adjustments	$ 30			$ 74
Change in Accounting Estimate, Effect of Change on Operating Results, Per Share, Diluted				$ 1.02