Business Segments - Segment Operating Results (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Product Liability Contingency [Line Items]
Net provisions for litigations and regulatory proceedings	$ 534	$ 3,420	$ 1,240

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.

No definition available.

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