Investments (Continuous Gross Unrealized Losses for Fixed Maturity Securities Available-For-Sale) (Details) $ in Millions	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	$ 179,173	$ 62,019
Less than 12 months Gross Unrealized Loss	$ 29,021	$ 1,264
Total number of securities in an unrealized loss position less than 12 months	17,320	4,774
Equal to or Greater than 12 Months Estimated Fair Value	$ 26,364	$ 13,224
Equal to or Greater than 12 Months Gross Unrealized Loss	$ 7,958	$ 1,154
Total number of securities in an unrealized loss position equal or greater than 12 months	2,796	979
U.S. corporate
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	$ 58,850	$ 8,076
Less than 12 months Gross Unrealized Loss	9,547	165
Equal to or Greater than 12 Months Estimated Fair Value	3,721	1,499
Equal to or Greater than 12 Months Gross Unrealized Loss	1,259	116
Foreign corporate
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	33,828	10,011
Less than 12 months Gross Unrealized Loss	8,238	404
Equal to or Greater than 12 Months Estimated Fair Value	6,209	2,834
Equal to or Greater than 12 Months Gross Unrealized Loss	2,090	327
Foreign government
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	16,696	7,812
Less than 12 months Gross Unrealized Loss	2,290	319
Equal to or Greater than 12 Months Estimated Fair Value	6,598	5,377
Equal to or Greater than 12 Months Gross Unrealized Loss	2,260	502
U.S. government and agency
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	19,728	14,419
Less than 12 months Gross Unrealized Loss	2,739	138
Equal to or Greater than 12 Months Estimated Fair Value	3,078	1,571
Equal to or Greater than 12 Months Gross Unrealized Loss	976	138
RMBS
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	20,502	10,363
Less than 12 months Gross Unrealized Loss	2,629	158
Equal to or Greater than 12 Months Estimated Fair Value	3,404	417
Equal to or Greater than 12 Months Gross Unrealized Loss	884	30
ABS & CLO
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	13,681	8,150
Less than 12 months Gross Unrealized Loss	1,065	39
Equal to or Greater than 12 Months Estimated Fair Value	1,858	804
Equal to or Greater than 12 Months Gross Unrealized Loss	219	20
Municipals
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	7,907	524
Less than 12 months Gross Unrealized Loss	1,690	10
Equal to or Greater than 12 Months Estimated Fair Value	157	65
Equal to or Greater than 12 Months Gross Unrealized Loss	62	3
CMBS
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	7,981	2,664
Less than 12 months Gross Unrealized Loss	823	31
Equal to or Greater than 12 Months Estimated Fair Value	1,339	657
Equal to or Greater than 12 Months Gross Unrealized Loss	208	18
Investment Grade
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	170,622	58,358
Less than 12 months Gross Unrealized Loss	27,906	1,123
Equal to or Greater than 12 Months Estimated Fair Value	24,394	12,022
Equal to or Greater than 12 Months Gross Unrealized Loss	$ 7,376	1,025
Total number of securities in an unrealized loss position equal or greater than 12 months	2,477
Below Investment Grade
Debt Securities, Available-for-sale [Line Items]
Less than 12 months Estimated Fair Value	$ 8,551	3,661
Less than 12 months Gross Unrealized Loss	1,115	141
Equal to or Greater than 12 Months Estimated Fair Value	1,970	1,202
Equal to or Greater than 12 Months Gross Unrealized Loss	$ 582	$ 129
Total number of securities in an unrealized loss position equal or greater than 12 months	319

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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