Employee Benefit Plans - Net Defined Benefit Plan Obligations (Detail) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Plan expense recognized in income statement:
Net plan obligations recognized in non-current liabilities	$ (449)	$ (504)

The amount of deficit in a defined benefit plan. [Refer: Defined benefit plans [domain]]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
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-IssueDate 2025-01-01
-Paragraph 55
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-URIDate 2025-03-27

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