Consolidated Balance Sheets - USD ($) $ in Millions		Dec. 31, 2021		Dec. 31, 2020
Investments and cash:
Available for sale, fixed maturity securities		$ 98,696		$ 105,882
Held to maturity fixed maturity securities, net carrying amount		22,000	[1]	24,464
Equity securities		1,603		1,283
Commercial mortgage and other loans		11,786		10,554
Other investments		3,842		2,429
Cash and cash equivalents		5,051		5,141
Total investments and cash		142,978		149,753
Receivables		693		796
Accrued investment income		737		780
Deferred policy acquisition costs		9,525		10,441
Property and equipment, at cost less accumulated depreciation		538		601
Other		3,071		2,715
Assets		157,542		165,086
Policy liabilities:
Future policy benefits		90,588		97,783
Unpaid policy claims		4,836		5,187
Unearned premiums		2,576		3,597
Other policyholders' funds		7,072		7,824
Total policy liabilities		105,072		114,391
Income taxes		4,339		4,661
Payables for return of cash collateral on loaned securities		2,162		964
Notes payable and lease obligations		7,956		7,899
Other		4,760		3,612
Total liabilities		124,289		131,527
Commitments and contingent liabilities (Note 15)
Shareholders' equity:
Common stock of $.10 par value. In thousands: authorized 1,900,000 shares in 2021 and 2020; issued 1,352,739 shares in 2021 and 1,351,018 shares in 2020		135		135
Additional paid-in capital		2,529		2,410
Retained earnings		41,381		37,984
Accumulated other comprehensive income (loss):
Unrealized foreign currency translation gains (losses)		(2,013)		(1,109)
Unrealized gains (losses) on fixed maturity securities		9,602		10,361
Unrealized gains (losses) on derivatives		(30)		(34)
Pension liability adjustment		(166)		(284)
Treasury stock, at average cost		(18,185)		(15,904)
Total shareholders' equity		33,253		33,559
Total liabilities and shareholders' equity		157,542		165,086
Consolidated Entity Excluding Variable Interest Entities (VIE)
Investments and cash:
Available for sale, fixed maturity securities		94,206		101,286
Variable Interest Entity, Consolidated
Investments and cash:
Available for sale, fixed maturity securities		4,490		4,596
Commercial mortgage and other loans	[2]	9,740		8,964
Other investments	[2],[3]	1,535		826
Policy liabilities:
Total liabilities	[2]	$ 414		$ 231

[1] Net of allowance for credit losses

[2] Net of allowance for credit losses

[3] Consists entirely of alternative investments in limited partnerships