Related Party Transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Related Party Transaction [Line Items]
Revenue from related party	$ 829	$ 753	$ 1,628	$ 1,441
Total cost of revenues	632	584	1,250	1,119
Accounts receivable, net	265		265		$ 253
Accounts payable	265		265		426
Contract assets	1,016		1,016		872
Related Party | Leonardo S.p.A.
Related Party Transaction [Line Items]
Revenue from related party	3	3	7	11
Total cost of revenues	0	$ 0	0	$ 0
Accounts receivable, net	10		10		19
Accounts payable	4		4		4
Contract assets	$ 11		$ 11		$ 12