Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - Narrative (Details)

v3.19.1
STOCK-BASED COMPENSATION - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2018
Mar. 30, 2019
Dec. 30, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized compensation cost related to nonvested stock-based compensation   $ 56.0    
Total unrecognized compensation cost related to nonvested stock-based compensation, period of recognition (years)   1 year    
Shares available for future grant (in shares)   27,710,266    
Share based compensation vesting period   3 years    
Award expiration period from grant date   10 years    
Total fair value of stock option vested $ 28.3 $ 26.8 $ 28.0 $ 26.7
Total intrinsic value of stock options exercised $ 57.3 $ 171.6 $ 106.7 $ 86.6
Non employee board of directors and employees in international jurisdiction        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options granted period of time options become exercisable   1 year    
Performance-based        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation vesting period   3 years    
Award expiration period from grant date   3 years    
Baseline profitability goal period   3 years    
Performance period, years   3 years    
Percentage of targets award adjusted to actual number of shares earned   25.00%    
Grant date fair value of each restricted units granted (in USD per share) $ 74.80 $ 80.39 $ 53.69 $ 61.31
Total market value of awards outstanding   $ 121.4    
Share earned in period (in shares)     450,175 480,555
Market value of shares vested     $ 36.4 $ 24.3
Performance-based | Minimum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares of common stock to be issued for each restricted stock unit granted (in shares)   0    
Performance-based | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares of common stock to be issued for each restricted stock unit granted (in shares)   2    
TSR Adjustment Performance-Based Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant date fair value of each restricted units granted (in USD per share) 4.61 $ 4.61 $ 2.67 $ 4.48
Nonperformance-based        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation vesting period   4 years    
Grant date fair value of each restricted units granted (in USD per share) 74.80 $ 79.21 $ 57.49 $ 61.83
Total market value of awards outstanding   $ 57.8    
Nonperformance-based | Non employee board of directors and employees in international jurisdiction        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Award expiration period from grant date   1 year    
Number of shares of common stock to be issued for each restricted stock unit granted (in shares)   1    
Restricted Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Grant date fair value of each restricted units granted (in USD per share) $ 74.70 $ 79.99    
Share earned in period (in shares) 53,203 99,682    
Market value of shares vested $ 3.9 $ 8.7 $ 19.4 $ 3.9
Fair value of restricted stock   $ 54.5    
Restricted Stock | Maximum        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation vesting period   5 years    
Share-based Compensation Award, Tranche One | Nonperformance-based | Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation vesting period   2 years    
Award vesting rights, percentage   50.00%    
Share-based Compensation Award, Tranche Two | Nonperformance-based | Employees        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share based compensation vesting period   4 years    
Award vesting rights, percentage   50.00%