Goodwill and Intangible Assets, Net (Tables)
12 Months Ended
Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]  
Summary of Changes in Net Carrying Amount of Goodwill
The changes in the net carrying amount of goodwill are as follows (in millions):
 
    
Employer
Solutions
    
Professional
Services
    
Total
 
Balance as of December 31, 2021
   $ 3,564        74        3,638  
    
 
 
    
 
 
    
 
 
 
Acquisitions
(1)
     44        —          44  
Foreign currency translation
     (2      (1      (3
    
 
 
    
 
 
    
 
 
 
Balance as of December 31, 2022
   $ 3,606        73        3,679  
    
 
 
    
 
 
    
 
 
 
 
(1)
 
Amounts relate to the 2022 Acquisition and measurement period adjustments related to prior year acquisitions. See Note 4 “Acquisitions” for more information.
Schedule of Intangible Assets by Asset Class
Intangible assets by asset class are as follows (in millions):
 
    
December 31, 2022
    
December 31, 2021
 
    
Gross
Carrying
Amount
    
Accumulated
Amortization
    
Net
Carrying
Amount
    
Gross
Carrying
Amount
    
Accumulated
Amortization
    
Net
Carrying
Amount
 
Intangible assets:
                                                     
Customer-related and contract based intangibles
   $ 3,670      $ 364      $ 3,306      $ 3,662      $ 119      $ 3,543  
Technology related intangibles
     263        63        200        254        20        234  
Trade name (finite life)
     408        42        366        407        14        393  
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
 
Total
   $ 4,341      $ 469      $ 3,872      $ 4,323      $ 153      $ 4,170  
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
    
 
 
 
Schedule of Intangible Asset Net Carrying Amount and Weighted Average Remaining Useful Lives
The following table reflects intangible asset net carrying amount and weighted average remaining useful lives as of December 31, 2022 (in millions, except for years):
 
    
Net
Carrying
Amount
    
Weighted-Average

Remaining

Useful Lives
 
Intangible assets at December 31, 2022:
                 
Customer-related and contract-based intangibles
   $ 3,306        13.5  
Technology-related intangibles
     200        4.5  
Trade name (finite life)
     366        13.3  
    
 
 
          
Total
   $ 3,872           
    
 
 
          
Schedule of Intangible Assets Expected Annual Amortization Expense
Subsequent to December 31, 2022, the annual amortization expense is expected to be as follows (in millions):
 
    
Customer-Related
and Contract Based
Intangibles
    
Technology
Related
Intangibles
    
Trade
Name
Intangibles
 
2023
   $ 246      $ 45      $ 29  
2024
     246        45        29  
2025
     246        45        28  
2026
     246        44        27  
2027
     246        21        27  
Thereafter
     2,076        —          226  
    
 
 
    
 
 
    
 
 
 
Total amortization expense
   $ 3,306      $ 200      $ 366