Derivative Instruments and Hedging Activities(Schedule of Terminated Cash Flows) (Details) - Accumulated Net Gain (Loss) from Derivative Instruments Designated as Cash Flow Hedges [Member] - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2023	Mar. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income related to discontinued cash flow hedges, before tax	$ 164	$ 700
Other Comprehensive Income (loss), Unrealized Gain (loss) on discontinued cash flow hedges arising during the period, before tax	(19)	0
Other Comprehensive Income (loss), Reclassification Adjustment from AOCI on discontinued cash flow hedges, before tax	(20)	(76)
Accumulated Other Comprehensive Income related to discontinued cash flow hedges, before tax	$ 125	$ 624

Derivative Instruments and Hedging Activities(Schedule of Terminated Cash Flows) (Details) - Accumulated Net Gain (Loss) from Derivative Instruments Designated as Cash Flow Hedges [Member] - USD ($)
$ in Millions

3 Months Ended

Mar. 31, 2023

Mar. 31, 2022

Accumulated Other Comprehensive Income (Loss) [Line Items]

Accumulated Other Comprehensive Income related to discontinued cash flow hedges, before tax

$ 164

$ 700

Other Comprehensive Income (loss), Unrealized Gain (loss) on discontinued cash flow hedges arising during the period, before tax

(19)

Other Comprehensive Income (loss), Reclassification Adjustment from AOCI on discontinued cash flow hedges, before tax

(20)

(76)

Accumulated Other Comprehensive Income related to discontinued cash flow hedges, before tax

$ 125

$ 624