Schedule II-Condensed Financial Information Of Registrant (Narrative) (Details) - Parent Company [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash dividends received from subsidiaries	$ 3,097	$ 3,134	$ 3,618
Cash dividends paid to subsidiaries	61	54	46
Capital contribution to subsidiaries	411	3,271	$ 2,460
Amounts due from subsidiaries	0	446
Net due to subsidiaries	789	0
Parental Guarantees	$ 550
Notes Receivable, Related Parties, Current		$ 1,500