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Investments (excluding Consolidated Investment Entities) - Debt Maturities (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Available-for-sale Securities, Including Securities Pledged [Line Items]
One year or less, Amortized Cost	$ 719
After one year through five years, Amortized Cost	3,892
After five years through ten years, Amortized Cost	3,800
After ten years, Amortized Cost	12,670
Fixed maturities, amortized cost	28,336	$ 26,536
One year or less, Fair Value	714
After one year through five years, Fair Value	3,875
After five years through ten years, Fair Value	3,803
After ten years, Fair Value	11,588
Mortgage-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Without single maturity date, Amortized Cost	7,603
Without single maturity date, Fair Value	7,024
Other asset-backed securities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Without single maturity date, Amortized Cost	2,888
Fixed maturities, amortized cost	2,888	2,779
Without single maturity date, Fair Value	2,879
Fixed maturities, fair value	2,879	2,769
Fixed maturities
Available-for-sale Securities, Including Securities Pledged [Line Items]
Fixed maturities, amortized cost	31,572	30,050
Fixed maturities, fair value	$ 29,883	$ 27,454

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- Definition

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in next rolling fiscal year following latest fiscal year. For interim and annual periods when interim period is reported on rolling approach, from latest statement of financial position date.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
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