Basis of Presentation (Unaudited) EAC Change (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Change in Accounting Estimate [Line Items]
Operating income	$ 897	$ 2,822
Contracts Accounted for under Percentage of Completion [Member]
Change in Accounting Estimate [Line Items]
Operating income	173	$ 190
Restricted Program [Member] \| Contracts Accounted for under Percentage of Completion [Member] \| Aeronautics Systems [Member]
Change in Accounting Estimate [Line Items]
Operating income	$ 67

The net result for the period of deducting operating expenses from operating revenues.

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