XML 52 R41.htm IDEA: XBRL DOCUMENT v3.26.1
Business Combinations - Summary of Estimated Fair Values of Net Assets Acquired (Detail)
$ in Millions
 3 Months Ended
Mar. 31, 2026
USD ($)
acquisition
Mar. 31, 2025
acquisition
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]    
Cash and cash equivalents $ 11  
Fiduciary assets 11  
Other current assets 1  
Fixed assets 3  
Noncurrent assets 1  
Goodwill 201  
Expiration lists 162  
Non-compete agreements 13  
Total assets acquired 403  
Fiduciary liabilities 11  
Current liabilities 11  
Noncurrent liabilities 47  
Total liabilities assumed 69  
Total net assets acquired $ 334  
Number of companies acquired | acquisition 51 28
Krose GmbH & Co KG February 25, 2026 (KGC)    
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]    
Cash and cash equivalents $ 4  
Fiduciary assets 6  
Other current assets 1  
Fixed assets 3  
Noncurrent assets 0  
Goodwill 145  
Expiration lists 102  
Non-compete agreements 11  
Total assets acquired 272  
Fiduciary liabilities 6  
Current liabilities 10  
Noncurrent liabilities 36  
Total liabilities assumed 52  
Total net assets acquired 220  
Eight other acquisitions completed in 2026    
Business Acquisition Actual Revenue And Pre Tax Income Loss [Line Items]    
Cash and cash equivalents 7  
Fiduciary assets 5  
Other current assets 0  
Fixed assets 0  
Noncurrent assets 1  
Goodwill 56  
Expiration lists 60  
Non-compete agreements 2  
Total assets acquired 131  
Fiduciary liabilities 5  
Current liabilities 1  
Noncurrent liabilities 11  
Total liabilities assumed 17  
Total net assets acquired $ 114  
Number of companies acquired | acquisition 8