Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2023		Dec. 31, 2022
Investments and cash:
Available for sale, fixed maturity securities		$ 73,290		$ 75,741
Held to maturity fixed maturity securities, net carrying amount		17,819	[1]	19,056
Equity securities		1,088		1,091
Commercial mortgage and other loans		12,527		13,496
Other investments		4,530		4,070
Cash and cash equivalents		4,306		3,943
Total investments and cash		113,560		117,397
Receivables		848		647
Accrued investment income		731		745
Deferred policy acquisition costs		9,132		9,239
Property and equipment, at cost less accumulated depreciation		445		530
Other		2,008		3,180
Total assets		126,724		131,738
Policy liabilities:
Future policy benefits		83,718		88,241
Unpaid policy claims		261		201
Unearned premiums		1,451		1,825
Other policyholders’ funds		6,169		6,643
Total policy liabilities		91,599		96,910
Income taxes		154		698
Payables for return of cash collateral on loaned securities		1,503		1,809
Notes payable and lease obligations		7,364		7,442
Other		4,119		4,739
Total liabilities		104,739		111,598
Commitments and contingent liabilities (Note 15)
Shareholders' equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000 shares in 2023 and 2022; issued 1,355,398 shares in 2023 and 1,354,079 shares in 2022		136		135
Additional paid-in capital		2,771		2,641
Retained earnings		47,993		44,367
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)		(4,069)		(3,564)
Unrealized gains (losses) on fixed maturity securities		1,139		(702)
Unrealized gains (losses) on derivatives		(22)		(27)
Effect of changes in discount rate assumptions		(2,560)		(2,100)
Pension liability adjustment		(8)		(36)
Treasury stock, at average cost		(23,395)		(20,574)
Total shareholders’ equity		21,985		20,140
Total liabilities and shareholders’ equity		126,724		131,738
Consolidated Entity Excluding Variable Interest Entities (VIE)
Investments and cash:
Available for sale, fixed maturity securities		69,578		71,936
Variable Interest Entity, Consolidated
Investments and cash:
Available for sale, fixed maturity securities		3,712		3,805
Commercial mortgage and other loans	[2]	10,150		10,832
Other investments	[2],[3]	2,381		1,909
Policy liabilities:
Total liabilities	[2]	$ 507		$ 390

[1] Net of allowance for credit losses

[2] Net of allowance for credit losses

[3] Consists entirely of alternative investments in limited partnerships