CONDENSED CONSOLIDATED BALANCE SHEETS PARENTHETICAL - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Available for Sale at Fair value - Amortized cost	$ 70,790	$ 64,977
Preferred stock par value (per share)	$ 10,000.00
Common stock par value (per share)	$ 10,000.00	$ 10,000.00
Common stock shares authorized	140,000,000,000,000	140,000,000,000,000
Common Stock, Shares, Issued	85,310,598,000,000	85,310,598,000,000
Allowance for Loan and Lease Losses, Real Estate	$ 77	$ 67
Financing Receivable, Allowance for Credit Loss	$ 95	75
Preferred stock shares authorized	10,000,000,000,000
Limited partnerships and real estate joint ventures	$ 2,697	2,635
Market risk benefits, at fair value	$ 228	$ 258
Treasury Stock, Common, Shares	19,522,343,000,000	19,689,885,000,000
Funds withheld payable	$ 4,409	$ 4,483
Preferred stock shares authorized	10,000,000,000,000