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Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts and Billings in Excess of Costs and Estimated Earnings on Uncompleted Contracts CIE (Details) - USD ($) $ in Millions	Sep. 30, 2016	Dec. 31, 2015
Costs and estimated earnings in excess of billings on uncompleted contracts (CIE)	$ 390	$ 224
Operating Segments [Member]
Costs and estimated earnings in excess of billings on uncompleted contracts (CIE)	390	224
Operating Segments [Member] | Technology and Consulting [Member]
Costs and estimated earnings in excess of billings on uncompleted contracts (CIE)	25	42
Operating Segments [Member] | Engineering and Construction [Member]
Costs and estimated earnings in excess of billings on uncompleted contracts (CIE)	123	114
Operating Segments [Member] | Government Services [Member]
Costs and estimated earnings in excess of billings on uncompleted contracts (CIE)	242	68
Operating Segments [Member] | Non-strategic Business [Member]
Costs and estimated earnings in excess of billings on uncompleted contracts (CIE)	$ 0	$ 0

X

- Definition

Amount of receivable reflecting the cost incurred on uncompleted contracts in excess of related billings which is expected to be collected within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 35
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57795-111642

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(c)(3))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 35
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68068069&loc=d3e57807-111642

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