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SIGNIFICANT ACCOUNTING POLICIES - Schedule of Deferred Income (Details) - USD ($) $ in Millions		12 Months Ended
	Dec. 31, 2020	Dec. 31, 2020	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2022	Dec. 31, 2021
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	$ 404	$ 404
Previously Reported
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	404	404
Effect of Modified Retrospective Application Accounting Standards Update 2018-12
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	0	0
Protection Solutions
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability		648
Protection Solutions \| Previously Reported
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability	483
Protection Solutions \| Effect of Modified Retrospective Application Accounting Standards Update 2018-12
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability	165
GMxB Legacy
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue			$ 189	$ 200	$ 211	$ 222
GMxB Legacy \| Legacy Segment
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	246	246
GMxB Legacy \| Legacy Segment \| Previously Reported
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	246	246
GMxB Legacy \| Legacy Segment \| Effect of Modified Retrospective Application Accounting Standards Update 2018-12
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	0	0
GMxB Core
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue			$ 132	$ 137	$ 142
GMxB Core \| Individual Retirement
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	158	158
GMxB Core \| Individual Retirement \| Previously Reported
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	158	158
GMxB Core \| Individual Retirement \| Effect of Modified Retrospective Application Accounting Standards Update 2018-12
Deferred Sale Inducement Cost [Line Items]
Sales inducement assets and unearned revenue	0	0
UL \| Protection Solutions
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability		60
UL \| Protection Solutions \| Previously Reported
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability	31
UL \| Protection Solutions \| Effect of Modified Retrospective Application Accounting Standards Update 2018-12
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability	29
VUL \| Protection Solutions
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability		565
VUL \| Protection Solutions \| Previously Reported
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability	438
VUL \| Protection Solutions \| Effect of Modified Retrospective Application Accounting Standards Update 2018-12
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability	127
IUL \| Protection Solutions
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability		$ 23
IUL \| Protection Solutions \| Previously Reported
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability	14
IUL \| Protection Solutions \| Effect of Modified Retrospective Application Accounting Standards Update 2018-12
Deferred Sale Inducement Cost [Line Items]
Protection solutions unearned revenue liability	$ 9