Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Related Party Transaction [Line Items]
Revenue from related party	$ 799	$ 688
Total cost of revenues	618	535
Accounts receivable, net	254		$ 253
Accounts payable	299		426
Contract assets	982		872
Related Party | Leonardo S.p.A.
Related Party Transaction [Line Items]
Revenue from related party	4	8
Total cost of revenues	0	$ 0
Accounts receivable, net	10		19
Accounts payable	$ 3		4
Contract assets			$ 12