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Revenue Recognition - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Oct. 02, 2021 | Sep. 26, 2020 | Oct. 02, 2021 | Sep. 26, 2020
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue recognized, included in beginning deferred contract liability balance | $ 8 | $ 9 | $ 22 | $ 27
SleepIQ Technology |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Estimated product life |  |  | 4 years 6 months |
Transferred at Point in Time | Revenue from Contract with Customer Benchmark | Timing of Transfer of Goods or Services Concentration Risk |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue recognized at a point in time | 99.00% | 98.00% | 99.00% | 98.00%

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