v3.25.3
Business Segments (Corporate Items) (Details) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Revenues:        
Adenza purchase accounting adjustment     $ 0 $ (32)
Expenses:        
Amortization expense of acquired intangible assets $ 122 $ 122 365 366
Merger and strategic initiatives expense 9 10 53 23
Restructuring charges 12 22 27 103
Gain on extinguishment of debt     (19)  
Pension settlement charge       23
Total expenses 479 461 1,433 1,343
Operating loss 586 448 1,702 1,281
Corporate        
Revenues:        
Divestiture 9 8 27 27
Adenza purchase accounting adjustment 0 (34) 0 (34)
Expenses:        
Amortization expense of acquired intangible assets 122 123 365 368
Amortization expense of acquired intangible assets   122   366
Merger and strategic initiatives expense 9 10 53 23
Restructuring charges 12 22 27 103
Legal and regulatory matters 1 0 3 16
Gain on extinguishment of debt     (19) 0
Pension settlement charge     0 23
Expenses - divestiture 5 4 13 12
Other 2 1 4 4
Total expenses 151 159 446 547
Operating loss $ (142) $ (185) $ (419) $ (554)