Consolidated Balance Sheets - USD ($) $ in Millions		Mar. 31, 2023		Dec. 31, 2022
Investments and Cash:
Available for sale, fixed maturity securities		$ 78,099		$ 75,741
Held to maturity, fixed maturity securities		18,936	[1]	19,056
Equity securities		1,087		1,091
Commercial mortgage and other loans		13,328		13,496
Other investments		5,241		4,070
Cash and cash equivalents		3,809		3,943
Total investments and cash		120,500		117,397
Receivables		789		647
Accrued investment income		701		745
Deferred policy acquisition costs		9,267		9,239
Property and equipment, at cost less accumulated depreciation		528		530
Other		3,181		3,180
Total assets		134,966		131,738
Policy Liabilities:
Future policy benefits		91,293		88,241
Unpaid policy claims		229		201
Unearned premiums		1,743		1,825
Other policyholders’ funds		6,668		6,643
Total policy liabilities		99,933		96,910
Income taxes		647		698
Payables for return of cash collateral on loaned securities		3,460		1,809
Notes payable and lease obligations		7,420		7,442
Other		3,722		4,739
Total liabilities		115,182		111,598
Commitments and contingent liabilities (Note 13)
Shareholders’ equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000 shares in 2023 and 2022; issued 1,355,012 shares in 2023 and 1,354,079 shares in 2022		135		135
Additional paid-in capital		2,665		2,641
Retained earnings		45,555		44,367
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)		(3,618)		(3,564)
Unrealized gains (losses) on fixed maturity securities		1,289		(702)
Unrealized gains (losses) on derivatives		(26)		(27)
Effect of changes in discount rate assumptions		(4,894)		(2,100)
Pension liability adjustment		(29)		(36)
Treasury stock, at average cost		(21,293)		(20,574)
Total shareholders’ equity		19,784		20,140
Total liabilities and shareholders’ equity		134,966		131,738
Consolidated Entity Excluding Variable Interest Entities (VIE)
Investments and Cash:
Available for sale, fixed maturity securities		74,174		71,936
Variable Interest Entity, Consolidated
Investments and Cash:
Available for sale, fixed maturity securities		3,925		3,805
Commercial mortgage and other loans	[2]	10,684		10,832
Other investments	[2],[3]	2,049		1,909
Policy Liabilities:
Total liabilities	[2]	$ 399		$ 390

[1] Net of allowance for credit losses

[2] Net of allowance for credit losses

[3] Consists entirely of alternative investments in limited partnerships