Income Tax (Tax Credit Carryforwards) (Details) $ in Millions	Dec. 31, 2022 USD ($)
Foreign Tax Authority
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 165
Foreign Tax Authority | 2023-2026
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	18
Foreign Tax Authority | 2027-2031
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	121
Foreign Tax Authority | 2032-2036
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	26
Foreign Tax Authority | 2037-2041
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
Foreign Tax Authority | Indefinite
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
General business tax credit carryforward
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	18
General business tax credit carryforward | 2023-2026
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
General business tax credit carryforward | 2027-2031
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	0
General business tax credit carryforward | 2032-2036
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	5
General business tax credit carryforward | 2037-2041
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	13
General business tax credit carryforward | Indefinite
Tax Credit Carryforward [Line Items]
Tax credit carryforwards	$ 0