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Share-Based Compensation Plans - Narrative (Details)
shares in Millions, $ in Millions
6 Months Ended
Jul. 01, 2017
USD ($)
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Vesting period 3 years
Restricted Stock Units (RSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Units granted in period (in shares) | shares 0.5
Aggregate grant date fair value | $ $ 39
Market Stock Units (MSUs)  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Units granted in period (in shares) | shares 0.1
Aggregate grant date fair value | $ $ 6
Stock Options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options granted in period (in shares) | shares 0.3
Aggregate grant date fair value | $ $ 5
Performance Options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Options granted in period (in shares) | shares 0.6
Aggregate grant date fair value | $ $ 9