Consolidated Statements of Operations and Comprehensive Income (Parentheticals) (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Income Tax Expense on Unrealized Gains and Losses Reclassified from AOCI	$ (77)	$ (6)	$ (99)	$ (2)
Net Realized Gains (Losses) Reclassified from AOCI	$ (442)	$ 12	$ (578)	$ 36