Acquisitions and Equity Investments - Summary of Pre-tax Gains or Losses in Investment in Equity Securities (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Meituan Dianping [Member]
Debt and Equity Securities, FV-NI [Line Items]
Unrealized loss recorded on equity securities held as of the end of the period	$ 1	$ (11)	$ (18)	$ (26)

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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+ Details