v3.25.3
Goodwill and Other Intangible Assets (Details) - Other Intangible Assets - USD ($)
$ in Millions
Sep. 30, 2025
Dec. 31, 2024
Other intangible assets by major asset class    
Intangible assets subject to amortization, gross carrying amount $ 408 $ 407
Intangible assets subject to amortization, accumulated amortization 292 273
Intangible assets subject to amortization, net 116 134
Intangible assets not subject to amortization 226 226
Total other intangible assets, gross carrying amount 634 633
Total other intangible assets, net 342 360
Customer-related [Member]    
Other intangible assets by major asset class    
Intangible assets subject to amortization, gross carrying amount 186 185
Intangible assets subject to amortization, accumulated amortization 89 74
Intangible assets subject to amortization, net 97 111
Contract-based [Member]    
Other intangible assets by major asset class    
Intangible assets subject to amortization, gross carrying amount 204 204
Intangible assets subject to amortization, accumulated amortization 198 196
Intangible assets subject to amortization, net 6 8
Marketing-related [Member]    
Other intangible assets by major asset class    
Intangible assets subject to amortization, gross carrying amount 18 18
Intangible assets subject to amortization, accumulated amortization 5 3
Intangible assets subject to amortization, net $ 13 $ 15