Condensed Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020
Other comprehensive income (loss), income tax expense	$ 1	$ 2	$ 2	$ 3
Products
Sales to affiliates	382	226	1,067	817
Services
Sales to affiliates	$ 6	$ 4	$ 15	$ 16

Amount of tax expense (benefit) allocated to other comprehensive income (loss).

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+ Details

- Definition

Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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