Inventoried Costs, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Inventory [Line Items]
Inventory, Raw Materials, Net of Reserves	$ 293	$ 338
Inventory, Work in Process, Net of Reserves	1,118	719
Inventory, Finished Goods, Net of Reserves	44	52
Inventoried costs, net	1,455	1,109
Increase (Decrease) in Inventoried Costs, Net	$ 346
Percent Increase (Decrease) in Inventoried Costs, Net	31.00%
Aeronautics Systems
Inventory [Line Items]
Inventory Write-down		45
Space Systems
Inventory [Line Items]
Inventory Write-down		$ 43