Derivatives (Cash Flow Hedges) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Gain (Loss) on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring, Net	$ 26	$ 4	$ 27	$ 2
Maximum Length of Time Hedged in Cash Flow Hedge			6 years		6 years
Accumulated Other Comprehensive Income Loss	$ 1,500		$ 1,500		$ 2,000