Contract Assets and Contract Liabilities (Schedule of Contract Assets) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Contract Assets [Line Items]
Unbilled	$ 13,308	$ 12,058
Progress payments	(7,186)	(6,464)
Contract assets	$ 6,122	$ 5,594

[Line Items] for Tabular disclosure of composition of contract assets.

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
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- Definition

Amount of progress payment offset against unbilled government contract receivable.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 912
-SubTopic 310
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=84167097&loc=d3e55549-109407

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- Definition

Unbilled amounts due for services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the entity and, at a minimum, one other party. An example would be amounts associated with contracts or programs where the recognized revenue for performance thereunder exceeds the amounts billed under the terms thereof as of the date of the balance sheet.

+ References

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-Publisher FASB
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-SubTopic 310
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-Subparagraph (SX 210.5-02.3(c)(3))
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