VARIABLE INTEREST ENTITIES (Details) - USD ($) $ in Millions		6 Months Ended
		Jun. 30, 2021		Jun. 30, 2020	Dec. 31, 2020
Assets:
Bonds available for sale	[1]	$ 273,070			$ 271,496
Other bond securities	[1]	4,866			5,291
Equity securities	[1]	1,079			1,056
Mortgage and other loans receivable	[1]	45,216			45,562
Other invested assets	[1]	20,139			19,060
Short-term investments	[1]	15,169			18,203
Accrued investment income	[1]	2,288			2,271
Cash		2,760	[1]	$ 3,408	2,827	[1]
Other	[1]	13,267			13,122
Total assets		598,250			586,481
Liabilities:
Long-term debt	[1]	26,161			28,103
Total liabilities		531,342			519,282
Off-balance sheet exposure		3
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Repayment of debt		1,839		513
Debt of consolidated investments
Liabilities:
Long-term debt	[1]	9,566			9,431
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Repayment of debt		2,560		$ 1,364
Alternative investments
Assets:
Other invested assets		10,453			9,572
Investment real estate
Assets:
Other invested assets		7,921			7,930
Real Estate and Investment Entities
Liabilities:
Off-balance sheet exposure		2,100			2,400
Real Estate and Investment Entities | External
Liabilities:
Off-balance sheet exposure		700			700
Consolidated VIE
Assets:
Bonds available for sale		4,863			6,089
Other bond securities		2,081			2,367
Equity securities		498			507
Mortgage and other loans receivable		2,662			3,135
Short-term investments		248			1,926
Accrued investment income		20			38
Cash		383			332
Other assets		440			529
Other		27			5
Total assets		21,412			24,553
Liabilities:
Long-term debt		8,942			8,809
Other liabilities		605			564
Total liabilities		9,547			9,373
Consolidated VIE | Alternative investments
Assets:
Other invested assets		3,243			2,689
Consolidated VIE | Investment real estate
Assets:
Other invested assets		6,947			6,936
Consolidated VIE | Real Estate and Investment Entities
Assets:
Bonds available for sale		0			0
Other bond securities		0			0
Equity securities		498			507
Mortgage and other loans receivable		0			0
Short-term investments		89			365
Accrued investment income		0			0
Cash		122			129
Other assets		130			166
Other		25			3
Total assets		7,280			7,237
Liabilities:
Long-term debt		2,374			2,559
Other liabilities		168			180
Total liabilities		2,542			2,739
Consolidated VIE | Real Estate and Investment Entities | Alternative investments
Assets:
Other invested assets		3,243			2,689
Consolidated VIE | Real Estate and Investment Entities | Investment real estate
Assets:
Other invested assets		3,173			3,378
Consolidated VIE | Securitization Vehicles
Assets:
Bonds available for sale		4,863			6,089
Other bond securities		2,081			2,367
Equity securities		0			0
Mortgage and other loans receivable		2,662			3,135
Short-term investments		139			1,534
Accrued investment income		20			38
Cash		0			0
Other assets		53			120
Other		0			0
Total assets		9,818			13,283
Liabilities:
Long-term debt		4,054			3,961
Other liabilities		241			187
Total liabilities		4,295			4,148
Consolidated VIE | Securitization Vehicles | Alternative investments
Assets:
Other invested assets		0			0
Consolidated VIE | Securitization Vehicles | Investment real estate
Assets:
Other invested assets		0			0
Consolidated VIE | Affordable housing partnerships
Assets:
Bonds available for sale		0			0
Other bond securities		0			0
Equity securities		0			0
Mortgage and other loans receivable		0			0
Short-term investments		0			0
Accrued investment income		0			0
Cash		261			203
Other assets		257			243
Other		0			0
Total assets		4,292			4,004
Liabilities:
Long-term debt		2,514			2,287
Other liabilities		187			187
Total liabilities		2,701			2,474
Consolidated VIE | Affordable housing partnerships | Alternative investments
Assets:
Other invested assets		0			0
Consolidated VIE | Affordable housing partnerships | Investment real estate
Assets:
Other invested assets		3,774			3,558
Consolidated VIE | Other
Assets:
Bonds available for sale		0			0
Other bond securities		0			0
Equity securities		0			0
Mortgage and other loans receivable		0			0
Short-term investments		20			27
Accrued investment income		0			0
Cash		0			0
Other assets		0			0
Other		2			2
Total assets		22			29
Liabilities:
Long-term debt		0			2
Other liabilities		9			10
Total liabilities		9			12
Consolidated VIE | Other | Alternative investments
Assets:
Other invested assets		0			0
Consolidated VIE | Other | Investment real estate
Assets:
Other invested assets		0			0
Unconsolidated VIE
Assets:
Other invested assets		7,200			6,800
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets		360,124			326,250
Maximum Exposure to Loss, On-Balance Sheet		7,424			6,983
Maximum Exposure to Loss, Off-Balance Sheet		4,112			3,823
Total maximum exposure to loss		11,536			10,806
Unconsolidated VIE | Real Estate and Investment Entities
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets		355,969			321,716
Maximum Exposure to Loss, On-Balance Sheet		6,920			6,420
Maximum Exposure to Loss, Off-Balance Sheet		3,629			3,273
Total maximum exposure to loss		10,549			9,693
Unconsolidated VIE | Affordable housing partnerships
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets		2,445			2,801
Maximum Exposure to Loss, On-Balance Sheet		295			368
Maximum Exposure to Loss, Off-Balance Sheet		3			4
Total maximum exposure to loss		298			372
Unconsolidated VIE | Affordable housing partnerships | Alternative investments
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Maximum Exposure to Loss, On-Balance Sheet		196			257
Unconsolidated VIE | Affordable housing partnerships | Other loans receivables
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Maximum Exposure to Loss, On-Balance Sheet		83			97
Unconsolidated VIE | Other
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Total VIE Assets		1,710			1,733
Maximum Exposure to Loss, On-Balance Sheet		209			195
Maximum Exposure to Loss, Off-Balance Sheet		480			546
Total maximum exposure to loss		689			$ 741
Indirectly wholly owned subsidiary | Securitization Vehicles | Debt of consolidated investments
Total assets of unconsolidated VIEs as well as maximum exposure to loss
Repayment of debt		$ 175

[1] See Note 8 for details of balances associated with variable interest entities.