Inventory (Tables)

3 Months Ended

Mar. 31, 2024

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

$ in millions	March 31, 2024		December 31, 2023
Contracts in process	$	862	$	647
Product inventory:
Raw materials	357		338
Work in process	92		72
Finished goods	59		52
Total product inventory	508		462
Inventoried costs, net	$	1,370	$	1,109