Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020
Income Tax Contingency [Line Items]
Valuation allowance	$ 0	$ 0
Unrecognized tax benefits that would impact effective tax rate	13	12
Income tax penalties and interest accrued	2	$ 1
Unrecognized tax benefit on technology initiatives			$ 8
Maximum
Income Tax Contingency [Line Items]
Tax effect of remaining net operating loss and tax credit carryforward	$ 1