Income Taxes (Operating and Capital Loss Carryforwards) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Federal
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	$ 0	$ 327
State and local
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	1,781	1,895
Foreign operations
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	295	268
Foreign operations | Operating loss expiring between 2022 and 2036
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	23
Foreign operations | Operating loss unlimited carryforward
Operating Loss Carryforwards [Line Items]
Operating loss carryforwards	272
Federal foreign
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	15	12
General business credits
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	$ 0	$ 0