CONDENSED CONSOLIDATED BALANCE SHEETS PARENTHETICAL - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Available for Sale at Fair value - Amortized cost	$ 52,229	$ 49,548
Preferred stock par value (per share)	$ 0.01
Common stock par value (per share)	$ 0.01	$ 0.01
Common stock shares authorized	140,000,000	140,000,000
Common Stock, Shares, Issued	85,310,598	85,310,598
Treasury stock, shares	17,325,355	17,353,697
Allowance for Loan and Lease Losses, Real Estate	$ 47	$ 64
Financing Receivable, Allowance for Credit Loss	$ 22	$ 20
Preferred stock shares authorized	10,000,000

The reserve to cover probable credit losses related to specifically identified fixed maturity real estate loans as well as probable credit losses inherent in the remainder of that loan portfolio.

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