Income Tax (Tax Credit Carryforwards) (Details) $ in Millions	Dec. 31, 2025 USD ($)
Foreign tax credit carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 135
Foreign tax credit carryforward | 2028-2032
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	121
Foreign tax credit carryforward | 2033-2037
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	14
Foreign tax credit carryforward | 2038-2042
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
General business tax credit carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	25
General business tax credit carryforward | 2028-2032
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
General business tax credit carryforward | 2033-2037
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	16
General business tax credit carryforward | 2038-2042
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 9