Fair Value - Schedule of Financial Instruments Not Carried at Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets – Asset Management	$ 394,491	$ 386,597
Debt	13,466	13,088
NAV
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets – Asset Management	26,190	23,920
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets – Asset Management	43,659	38,663
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets – Asset Management	166,157	171,899
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets – Asset Management	158,485	152,115
Retirement Services
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	8	33
Other investments	1,989	1,818
Total Assets – Asset Management	384,939	378,105
Debt	7,172	7,498
Retirement Services \| VIE, Primary Beneficiary
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	25,633	23,888
Retirement Services \| NAV
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets – Asset Management	25,345	23,602
Retirement Services \| NAV \| VIE, Primary Beneficiary
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	25,345	23,602
Retirement Services \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	0	0
Other investments	0	0
Total Assets – Asset Management	39,035	34,734
Retirement Services \| Level 1 \| VIE, Primary Beneficiary
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Retirement Services \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	7	33
Other investments	1,280	1,057
Total Assets – Asset Management	165,615	171,812
Retirement Services \| Level 2 \| VIE, Primary Beneficiary
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Retirement Services \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	1	0
Other investments	709	761
Total Assets – Asset Management	154,944	147,957
Retirement Services \| Level 3 \| VIE, Primary Beneficiary
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	288	286
Due to related parties \| Retirement Services
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	2,310	1,318
Other investments	341	344
Due to related parties \| Retirement Services \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Other investments	0	0
Due to related parties \| Retirement Services \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Other investments	0	0
Due to related parties \| Retirement Services \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	2,310	1,318
Other investments	341	344
Carrying Value \| Retirement Services
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Policy loans	296	301
Short-term investments		1,049
Other investments	64	57
Total Assets – Asset Management	22,914	24,757
Interest sensitive contract liabilities	268,841	257,022
Debt	7,840	7,848
Securities to repurchase	3,244	6,043
Funds withheld liability	6,247	5,946
Total financial liabilities not carried at fair value	286,172	276,859
Carrying Value \| Nonrelated Party \| Retirement Services
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	184	108
Funds withheld at interest	17,054	17,822
Short-term investments	132
Carrying Value \| Due to related parties \| Retirement Services
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	826	831
Funds withheld at interest	4,340	4,571
Short-term investments	18	18
Fair Value \| Retirement Services
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Policy loans	296	301
Short-term investments		1,049
Other investments	44	67
Total Assets – Asset Management	22,894	24,767
Interest sensitive contract liabilities	263,060	254,089
Debt	7,172	7,498
Securities to repurchase	3,244	6,043
Funds withheld liability	6,247	5,946
Total financial liabilities not carried at fair value	279,723	273,576
Fair Value \| Retirement Services \| NAV
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Policy loans	0	0
Short-term investments		0
Other investments	0	0
Total Assets – Asset Management	1,010	939
Interest sensitive contract liabilities	0	0
Debt	0	0
Securities to repurchase	0	0
Funds withheld liability	0	0
Total financial liabilities not carried at fair value	0	0
Fair Value \| Retirement Services \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Policy loans	0	0
Short-term investments		0
Other investments	0	0
Total Assets – Asset Management	0	0
Interest sensitive contract liabilities	0	0
Debt	546	576
Securities to repurchase	0	0
Funds withheld liability	0	0
Total financial liabilities not carried at fair value	546	576
Fair Value \| Retirement Services \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Policy loans	296	301
Short-term investments		907
Other investments	0	0
Total Assets – Asset Management	314	1,226
Interest sensitive contract liabilities	0	0
Debt	6,626	6,922
Securities to repurchase	3,244	6,043
Funds withheld liability	0	0
Total financial liabilities not carried at fair value	9,870	12,965
Fair Value \| Retirement Services \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Policy loans	0	0
Short-term investments		142
Other investments	44	67
Total Assets – Asset Management	21,570	22,602
Interest sensitive contract liabilities	263,060	254,089
Debt	0	0
Securities to repurchase	0	0
Funds withheld liability	6,247	5,946
Total financial liabilities not carried at fair value	269,307	260,035
Fair Value \| Nonrelated Party \| Retirement Services
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	184	108
Funds withheld at interest	17,054	17,822
Short-term investments	132
Fair Value \| Nonrelated Party \| Retirement Services \| NAV
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	184	108
Funds withheld at interest	0	0
Short-term investments	0
Fair Value \| Nonrelated Party \| Retirement Services \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Funds withheld at interest	0	0
Short-term investments	0
Fair Value \| Nonrelated Party \| Retirement Services \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Funds withheld at interest	0	0
Short-term investments	0
Fair Value \| Nonrelated Party \| Retirement Services \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Funds withheld at interest	17,054	17,822
Short-term investments	132
Fair Value \| Due to related parties \| Retirement Services
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	826	831
Funds withheld at interest	4,340	4,571
Short-term investments	18	18
Fair Value \| Due to related parties \| Retirement Services \| NAV
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	826	831
Funds withheld at interest	0	0
Short-term investments	0	0
Fair Value \| Due to related parties \| Retirement Services \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Funds withheld at interest	0	0
Short-term investments	0	0
Fair Value \| Due to related parties \| Retirement Services \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Funds withheld at interest	0	0
Short-term investments	18	18
Fair Value \| Due to related parties \| Retirement Services \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment funds	0	0
Funds withheld at interest	4,340	4,571
Short-term investments	$ 0	$ 0

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Other Investments, Fair Value Disclosure

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Fair value of financial obligations, including, but not limited to, debt instruments, derivative liabilities, federal funds purchased and sold under agreements to repurchase, securities loaned or sold under agreements to repurchase, financial instruments sold not yet purchased, guarantees, line of credit, loans and notes payable, servicing liability, and trading liabilities.

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Amount of the reinsurer's funds held on its behalf by the ceding insurer, including funds held in trust, under reinsurance treaties or contracts with the assuming insurer as security for the payment of the obligations thereunder.

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Fair value portion of liability related to investment contracts for example, but not limited to, guaranteed investment contract or annuities.

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Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts.

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Fair value portion of securities that an entity sells and agrees to repurchase at a specified date for a specified price.

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