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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Dec. 28, 2019
Sep. 28, 2019
Mar. 30, 2019
Sep. 29, 2018
Sep. 28, 2019
Sep. 29, 2018
Income Taxes [Line Items]            
Effective income tax rate reconciliation, at federal statutory income tax rate, percent   21.00%     21.00%  
Effective tax rate   35.00%   29.00% 39.00% 33.00%
Tax cuts and jobs act, alternative minimum tax, tax year description         For tax years 2018 through 2020, taxpayers may receive 50% of their uncredited balances as a cash refund with any remaining amounts refunded in full in 2021  
Tax cuts and jobs act, alternative minimum tax, percentage of uncredited balances received by taxpayers         50.00%  
Tax cuts and jobs act, alternative minimum tax, reclassified amount from non-current deferred tax assets to income tax receivables     $ 45      
Maximum | Scenario Forecast            
Income Taxes [Line Items]            
Tax cuts and jobs act, alternative minimum tax, credits refunded $ 45