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Earnings (Loss) Per Share - Additional Information (Detail) - shares
shares in Millions
3 Months Ended 6 Months Ended
Jun. 29, 2019
Jun. 30, 2018
Jun. 29, 2019
Jun. 30, 2018
Nonvested Stock Options and Shares        
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]        
Shares excluded from computation of diluted earnings per share 10 7 8 7