Contracts with Customers - Schedule of Unbilled Receivables and Claims) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Contracts with Customers [Abstract]
Contract with customers, unbilled, current	$ 6,348	$ 6,565
Contract with customers, expected to be collected after one year	2,053	1,771
Contract with customers, less valuation allowance	(38)	(19)	$ (23)
Total unbilled receivables	8,363	8,317
Contracts with customers, claims, current	9	6
Contract with customers, claims, expected to be collected after one year	51	40
Total claims receivables	$ 60	$ 46