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Intangible Assets, Net Excluding Goodwill and Other

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Sale of Equity Method Investments, Price Per Share

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Sale of Equity Method Investments, Shares Sold

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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The number of countries in which the entity operates as of balance sheet date.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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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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Basis of Presentation (Details) $ / shares in Units, € in Millions, shares in Millions, $ in Millions				12 Months Ended
	May 07, 2026 USD ($) $ / shares shares	Feb. 17, 2026 USD ($) $ / shares shares	Feb. 06, 2026 USD ($)	Dec. 31, 2028	Dec. 31, 2027	Dec. 31, 2026	Sep. 30, 2026 USD ($) country	Sep. 24, 2026 USD ($)	Sep. 24, 2026 EUR (€)	Dec. 31, 2025 USD ($)
Schedule of Equity Method Investments [Line Items]
Number of countries in which the entity operates \| country							200
Goodwill							$ 3,423			$ 3,435
Shares sold (in shares) \| shares	25.5	24.7
Per share purchase price (in dollars per share) \| $ / shares	$ 27.90	$ 30.42
Aggregate proceeds	$ 710	$ 750
Senior Notes \| Notes Due 2031
Schedule of Equity Method Investments [Line Items]
Amount of debt issued \| €									€ 625
Interest rate (as a percent)								4.25%	4.25%
Senior Notes \| Notes Due 2036
Schedule of Equity Method Investments [Line Items]
Amount of debt issued \| €									€ 500
Interest rate (as a percent)								4.75%	4.75%
Senior Notes \| Notes Due 2031 and 2036
Schedule of Equity Method Investments [Line Items]
Amount of debt issued								$ 1,300
Convex Group Limited
Schedule of Equity Method Investments [Line Items]
Ownership (as a percent)			35.00%
Consideration for equity method ownership			$ 2,100
Intangible assets and other			520
Goodwill			$ 440
Convex Group Limited \| Forecast
Schedule of Equity Method Investments [Line Items]
Reinsurance percentage				12.50%	10.00%	7.50%
Onex Corporation
Schedule of Equity Method Investments [Line Items]
Ownership (as a percent)			9.90%
Consideration for equity method ownership			$ 642