CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2022		Dec. 31, 2021
Fixed Maturity Securities [Abstract]
Fixed maturity securities available-for-sale at fair value (amortized cost of $59,663 and $55,873; allowance for credit losses of $37 and $31)	$ 52,901	[1]	$ 60,749	[2]
Equity Securities, FV-NI	134		151
Mortgage loans (net of allowance for credit losses of $51 and $35)	6,590		6,283
Policy loans	1,231		1,234
Funds withheld at interest	6,003		6,954
Real Estate Investments, Joint Ventures	2,327		1,996
Short-term investments	154		87
Other invested assets	1,140		1,074
Total investments	70,480		78,528
Cash and cash equivalents	2,927		2,948
Accrued investment income	630		533
Premiums receivable and other reinsurance balances	3,013		2,888
Reinsurance ceded receivables and other	2,462		2,580
Deferred policy acquisition costs	3,974		3,690
Other assets	1,220		1,008
Total assets	84,706		92,175
Liabilities and Equity
Future policy benefits	35,220		35,782
Interest-sensitive contract liabilities	30,572		26,377
Other policy claims and benefits	6,571		6,993
Other reinsurance balances	756		613
Deferred income taxes	736		2,886
Other liabilities	2,655		2,663
Long-term debt	3,961		3,667
Collateral finance and securitization notes	0		180
Total liabilities	80,471		79,161
Commitments and contingent liabilities (See Note 12)
Stockholders Equity:
Preferred stock (par value $.01 per share; 10,000,000 shares authorized; no shares issued or outstanding)	0		0
Common stock (par value $0.01 per share; 140,000,000 shares authorized; shares issued: 85,310,598 at both December 31, 2022 and December 31, 2021)	1		1
Additional paid-in-capital	2,502		2,461
Retained earnings	8,967		8,563
Treasury stock, at cost – 18,634,390 and 18,139,868 shares	(1,720)		(1,653)
Accumulated other comprehensive income	(5,605)		3,642
Total Reinsurance Group of America, Inc. stockholders’ equity	4,145		13,014
Total liabilities and stockholders’ equity	84,706		92,175
Stockholders' Equity Attributable to Noncontrolling Interest	90		0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	$ 4,235		$ 13,014

[1] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2022, the fair value of such investments was $683 million

[2] Excludes limited partnerships that are measured at estimated fair value using the NAV per share (or its equivalent) as a practical expedient. As of December 31, 2021, the fair value of such investments was $581 million.