Investigations, Claims, and Litigation (Narrative) (Details) - Bolivarian Republic of Venezuela $ in Millions	6 Months Ended
Jun. 30, 2020 USD ($) frigates
Loss Contingencies
Number of Foreign Built Frigates \| frigates	2
Arbitral statement claim	$ 151
Litigation counter claim [Member]
Loss Contingencies
Arbitral statement claim	$ 22

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