Consolidated Balance Sheets - USD ($) $ in Millions		Mar. 31, 2021		Dec. 31, 2020
Investments and Cash:
Available for sale, fixed maturity securities		$ 100,744		$ 105,882
Held to maturity, fixed maturity securities, net carrying amount		22,868	[1]	24,464
Equity securities		1,174		1,283
Commercial mortgage and other loans		10,847		10,554
Other investments		2,666		2,429
Cash and cash equivalents		4,990		5,141
Total investments and cash		143,289		149,753
Receivables		777		796
Accrued investment income		706		780
Deferred policy acquisition costs		9,835		10,441
Property and equipment, at cost less accumulated depreciation		578		601
Other		2,972		2,715
Total assets		158,157		165,086
Policy Liabilities:
Future policy benefits		92,396		97,783
Unpaid policy claims		4,948		5,187
Unearned premiums		3,194		3,597
Other policyholders’ funds		7,367		7,824
Total policy liabilities		107,905		114,391
Income taxes		4,350		4,661
Payables for return of cash collateral on loaned securities		1,896		964
Notes payable and lease obligations		8,088		7,899
Other		3,815		3,612
Total liabilities		126,054		131,527
Commitments and contingent liabilities (Note 12)
Shareholders’ equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000 shares in 2021 and 2020; issued 1,352,279 shares in 2021 and 1,351,018 shares in 2020		135		135
Additional paid-in capital		2,438		2,410
Retained earnings		39,277		37,984
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)		(1,674)		(1,109)
Unrealized gain (losses) on fixed maturity securities		8,794		10,361
Unrealized gains (losses) on derivatives		(33)		(34)
Pension liability adjustment		(280)		(284)
Treasury stock, at average cost		(16,554)		(15,904)
Total shareholders’ equity		32,103		33,559
Total liabilities and shareholders’ equity		158,157		165,086
Consolidated Entity Excluding Variable Interest Entities (VIE)
Investments and Cash:
Available for sale, fixed maturity securities		96,391		101,286
Variable Interest Entity, Consolidated
Investments and Cash:
Available for sale, fixed maturity securities		4,353		4,596
Commercial mortgage and other loans	[2]	9,210		8,964	[3]
Other investments	[2],[4]	908		826	[3]
Policy Liabilities:
Total liabilities	[2]	$ 218		$ 231

[1] Net of allowance for credit losses

[2] Net of allowance for credit losses

[3] Consists entirely of alternative investments in limited partnerships

[4] Consists entirely of alternative investments in limited partnerships