Restructuring - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 24.0	$ 20.0
Operational Evolution Program (OEP)
Restructuring Cost and Reserve [Line Items]
Expected costs to be incurred			$ 95.0
Cumulative restructuring charges	50.9
Operational Evolution Program (OEP) | Banking
Restructuring Cost and Reserve [Line Items]
Expected costs to be incurred			28.0
Cumulative restructuring charges	16.0
Restructuring charges	6.0
Operational Evolution Program (OEP) | Retail
Restructuring Cost and Reserve [Line Items]
Expected costs to be incurred			$ 17.0
Cumulative restructuring charges	9.0
Restructuring charges	$ 6.1
Continuous Improvement Initiative | Banking
Restructuring Cost and Reserve [Line Items]
Restructuring charges		3.4
Continuous Improvement Initiative | Retail
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 7.1