Intangible Assets and Goodwill - Carrying Amount of Goodwill (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill Activity
Beginning balance	$ 3,312,000,000	$ 2,565,000,000
Goodwill acquired	109,000,000	800,000,000
Purchase accounting adjustments	(31,000,000)	(31,000,000)
Foreign currency translation	11,000,000	(22,000,000)
Ending balance	3,401,000,000	3,312,000,000
Impairment of goodwill	0	0
Products and Systems Integration
Goodwill Activity
Beginning balance	1,461,000,000	1,236,000,000
Goodwill acquired	109,000,000	227,000,000
Purchase accounting adjustments	(2,000,000)	(2,000,000)
Foreign currency translation	0	0
Ending balance	1,568,000,000	1,461,000,000
Software and Services
Goodwill Activity
Beginning balance	1,851,000,000	1,329,000,000
Goodwill acquired	0	573,000,000
Purchase accounting adjustments	(29,000,000)	(29,000,000)
Foreign currency translation	11,000,000	(22,000,000)
Ending balance	$ 1,833,000,000	$ 1,851,000,000