Commitments and Contingent Liabilities - Legal Proceedings Narrative (Details)		12 Months Ended
	Mar. 05, 2024 EUR (€)	Dec. 31, 2015 trust	Dec. 31, 2025 USD ($)
Loss Contingencies [Line Items]
Liability recognized			$ 0
Northern Trust Fiduciary Services (Guernsey) Limited
Loss Contingencies [Line Items]
Number of administrated trusts served as trustee on | trust		2
Fine amount | €	€ 187,500
Minimum
Loss Contingencies [Line Items]
Possible loss in future periods in excess of accrual			0
Maximum
Loss Contingencies [Line Items]
Possible loss in future periods in excess of accrual			$ 15,000,000