Segment Information (Reconciliation Of Reportable Segment Operating Gain To Income Before Income Taxes In The Consolidated Statements Of Income) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting [Abstract]
Income before income taxes	$ 7,769	$ 7,925	$ 6,238
Net Investment Income	(1,485)	(1,378)	(877)
Net (losses) gains on financial instruments	550	(318)	(182)
Interest expense	851	798	784
Amortization of other intangible assets	767	441	361
Loss on extinguishment of debt	0	21	36
Reportable segments operating gain	$ 8,452	$ 7,489	$ 6,360