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Stock Compensation Plans - Stock-Based Compensation Expense and Related Tax Benefits (Detail) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Feb. 01, 2021
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total stock-based compensation expense   $ 19 $ 13 $ 33 $ 21
Less: Tax benefit   (4) (2) (7) (3)
Total stock-based compensation expense, after tax   15 11 26 18
Nutrition & Biosciences, Inc          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total stock-based compensation expense       $ 6  
Shares issued as part of merger consideration (shares) 141,740,461        
Equity issued in business combination, fair value $ 25        
Post-combination service period       3 years  
Nutrition & Biosciences, Inc | Share-based Payment Arrangement, Option          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares issued as part of merger consideration (shares) 335,347        
Nutrition & Biosciences, Inc | Restricted Stock Units (RSUs)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares issued as part of merger consideration (shares) 258,572        
Nutrition & Biosciences, Inc | Stock Appreciation Rights (SARs)          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Shares issued as part of merger consideration (shares) 5,816        
Equity-based awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total stock-based compensation expense   16 10 $ 27 19
Liability-based awards          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Total stock-based compensation expense   $ 3 $ 3 $ 6 $ 2