Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Investments:
Fixed maturities, available-for-sale, at fair value (amortized cost of $40,078 and $35,603)	$ 42,148	$ 35,652
Fixed maturities, at fair value using the fair value option	11	22
Equity securities, at fair value	1,657	1,214
Mortgage loans (net of allowances for loan losses of $0 and $1)	4,215	3,704
Limited partnerships and other alternative investments	1,758	1,723
Other investments	320	192
Short-term investments	2,921	4,283
Total investments	53,030	46,790
Cash	185	112
Restricted Cash	77	9
Premiums receivable and agents’ balances, net	4,384	3,995
Reinsurance recoverables, net	5,527	4,357
Deferred policy acquisition costs	785	670
Deferred income taxes, net	299	1,248
Goodwill	1,913	1,290
Property and equipment, net	1,181	1,006
Other intangible assets, net	1,070	657
Other assets	2,366	2,173
Total assets	70,817	62,307
Liabilities
Unpaid losses and loss adjustment expenses	36,517	33,029
Reserve for future policy benefits	635	642
Other policyholder funds and benefits payable	755	767
Unearned premiums	6,635	5,282
Short-term debt	500	413
Long-term debt	4,348	4,265
Other liabilities	5,157	4,808
Total liabilities	54,547	49,206
Commitments and Contingencies (Note 14)
Stockholders’ Equity
Preferred stock, $0.01 par value — 50,000,000 shares authorized, 13,800 shares issued at December 31, 2019 and December 31, 2018, aggregate liquidation preference of $345	334	334
Common stock, $0.01 par value — 1,500,000,000 shares authorized, 384,923,222 shares issued at December 31, 2019 and December 31, 2018	4	4
Additional paid-in capital	4,312	4,378
Retained earnings	12,685	11,055
Treasury stock, at cost — 25,352,977 and 25,772,238 shares	(1,117)	(1,091)
Accumulated other comprehensive income (loss), net of tax	52	(1,579)
Total stockholders' equity	16,270	13,101
Total liabilities and stockholders’ equity	70,817	62,307
Debt Securities, Available-for-sale, Amortized Cost	40,078	35,603
Allowance for Loan and Lease Losses, Real Estate	$ 0	$ 1
Preferred Stock, Shares Issued	13,800,000	13,800
Preferred Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Preferred Stock, Shares Authorized	50,000,000	50,000,000
Preferred Stock, Liquidation Preference, Value	$ 345	$ 0
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	1,500,000,000	1,500,000,000
Common Stock, Shares, Issued	384,923,222	384,923,222.00
Treasury Stock, Shares	25,352,977	25,772,238