Intangible Assets and Goodwill - Amortized Intangible Assets, Excluding Goodwill, by Business Segment (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,829	$ 2,701
Accumulated Amortization	1,574	1,359
Products and Systems Integration
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	985	913
Accumulated Amortization	337	261
Software and Services
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,844	1,788
Accumulated Amortization	$ 1,237	$ 1,098