Fair Value of Assets and Liabilities (Financial Instruments where Carrying Amounts and Fair Values May Differ) (Details) - USD ($) $ in Millions		Sep. 30, 2022		Dec. 31, 2021	Dec. 31, 2020
Assets
Mortgage loans on real estate (net of valuation allowances)		$ 6,558		$ 6,283
Policy loans		1,202		1,234
Funds withheld at interest		6,177		6,954
Cash and cash equivalents		3,512		2,948	$ 3,408
Short-term investments		225		87
Other invested assets		3,246		3,070
Accrued investment income		628		533
Liabilities
Interest-sensitive contract liabilities		30,286		26,377
Other liabilities		2,910		2,663
Long-term debt		4,207		3,667
Reported Value Measurement [Member]
Assets
Mortgage loans on real estate (net of valuation allowances)	[1]	6,558		6,283
Policy loans	[1]	1,202		1,234
Funds withheld at interest	[1]	6,343		6,747
Cash and cash equivalents	[1]	1,398		1,810
Short-term investments	[1]	29		23
Other invested assets	[1]	904		910
Accrued investment income	[1]	628		533
Liabilities
Interest-sensitive contract liabilities	[1]	23,141		18,625
Other liabilities	[1]	1,610		1,658
Long-term debt	[1]	4,207		3,667
Collateral finance and securitization notes		0	[1]	180
Estimate of Fair Value Measurement [Member]
Assets
Mortgage loans on real estate (net of valuation allowances)		5,902		6,580
Policy loans		1,202		1,234
Funds withheld at interest		6,051		7,075
Cash and cash equivalents		1,398		1,810
Short-term investments		29		23
Other invested assets		671		907
Accrued investment income		628		533
Liabilities
Interest-sensitive contract liabilities		22,450		19,540
Other liabilities		1,383		1,657
Long-term Debt, Fair Value		3,955		3,886
Collateral finance and securitization notes		0		153
Estimate of Fair Value Measurement [Member] | Fair Value Inputs Level 1 Member
Assets
Mortgage loans on real estate (net of valuation allowances)		0		0
Policy loans		0		0
Funds withheld at interest		0		0
Cash and cash equivalents		1,398		1,810
Short-term investments		29		23
Other invested assets		4		6
Accrued investment income		0		0
Liabilities
Interest-sensitive contract liabilities		0		0
Other liabilities		0		0
Long-term Debt, Fair Value		0		0
Collateral finance and securitization notes		0		0
Estimate of Fair Value Measurement [Member] | Fair Value Inputs Level 2 Member
Assets
Mortgage loans on real estate (net of valuation allowances)		0		0
Policy loans		1,202		1,234
Funds withheld at interest		0		0
Cash and cash equivalents		0		0
Short-term investments		0		0
Other invested assets		66		70
Accrued investment income		628		533
Liabilities
Interest-sensitive contract liabilities		0		0
Other liabilities		0		0
Long-term Debt, Fair Value		0		0
Collateral finance and securitization notes		0		0
Estimate of Fair Value Measurement [Member] | Fair Value Inputs Level 3 Member
Assets
Mortgage loans on real estate (net of valuation allowances)		5,902		6,580
Policy loans		0		0
Funds withheld at interest		6,051		7,075
Cash and cash equivalents		0		0
Short-term investments		0		0
Other invested assets		601		831
Accrued investment income		0		0
Liabilities
Interest-sensitive contract liabilities		22,450		19,540
Other liabilities		1,383		1,657
Long-term Debt, Fair Value		3,955		3,886
Collateral finance and securitization notes		$ 0		$ 153

[1] Carrying values presented herein may differ from those in the Company’s condensed consolidated balance sheets because certain items within the respective financial statement captions may be measured at fair value on a recurring basis.