v3.26.3
Equity Method Investment - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Schedule of Equity Method Investments [Line Items]        
Dividends received from equity method investment     $ 83 $ 135
Bankers Healthcare Group, LLC | Pinnacle Bank        
Schedule of Equity Method Investments [Line Items]        
Dividends received from equity method investment $ 13 $ 33 $ 83 $ 135