Contingencies (Federal Government's Lawsuit) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Loss Contingencies [Line Items]
Loss contingency accrual, provision		$ 90
Implementation of Corrective Communications [Member]
Loss Contingencies [Line Items]
Loss contingency accrual, provision	$ 28