Goodwill and Intangible Assets, Net - Additional Information (Details) - USD ($) $ in Millions		6 Months Ended		12 Months Ended
		Dec. 31, 2021	Jun. 30, 2021	Dec. 31, 2023	Dec. 31, 2022
Finite Lived Intangible Assets [Line Items]
Impairment of goodwill				$ 148
Amortization of intangible assets		$ 153	$ 100	$ 319	$ 316
Increase in hypothetical basis point in discount rate				0.0025
Decrease in hypothetical basis point in long-term growth rate				0.0050
Non cash goodwill impairment charge	[1]			$ (148)
Goodwill				3,543	$ 3,679
Health Solutions
Finite Lived Intangible Assets [Line Items]
Impairment of goodwill				$ 82
Maximum percentage reporting units exceeded carrying values				1.80%
Goodwill				$ 3,084
Wealth Solutions
Finite Lived Intangible Assets [Line Items]
Maximum percentage reporting units exceeded carrying values				7.10%
Goodwill				$ 128
Health and Wealth Solutions
Finite Lived Intangible Assets [Line Items]
Utilized discount rate				11.50%
Goodwill long-term growth rate				3.50%
Cloud Services
Finite Lived Intangible Assets [Line Items]
Utilized discount rate				12.00%
Goodwill long-term growth rate				3.50%
Non cash goodwill impairment charge				$ 148
Goodwill				$ 258
Professional Services
Finite Lived Intangible Assets [Line Items]
Utilized discount rate				15.00%
Maximum percentage reporting units exceeded carrying values				0.70%
Goodwill long-term growth rate				3.00%
Reporting unit fair value exceeded its carrying value				$ 1
Goodwill				$ 73

[1] Amounts relate to a non-cash goodwill impairment charge related to the Company's Cloud Services reporting unit.