Annual report pursuant to Section 13 and 15(d)

STOCK INCENTIVE AND STOCK OPTION PLANS (Details 3) Grant Date Fair Value

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STOCK INCENTIVE AND STOCK OPTION PLANS (Details 3) Grant Date Fair Value - USD ($)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Share-based compensation plan, other than stock options, weighted average grant date fair value activity      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 2 years    
Restricted Shares released after Two Years (percent) 33.33%    
Restricted Shares Released each Year after Two Years (percent) 33.33%    
Black-Scholes option pricing model assumptions      
Expected life 6 years 6 years 6 years
Risk-free interest rate 2.41% 2.72% 2.08%
Expected volatility 23.79% 25.40% 29.97%
Dividend yield 2.68% 2.48% 2.28%
Employee Stock Option      
Share-based compensation plan, other than stock options, weighted average grant date fair value activity      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years    
Performance Shares      
Share-based compensation plan, other than stock options, activity      
Nonvested at the beginning of the period (in shares) 410,350 411,239 404,494
Granted (in shares) 185,377 124,700 150,225
Vested (in shares) (176,613) (80,996) (85,020)
Forfeited (in shares) (23,183) (44,593) (58,460)
Nonvested at the end of the period (in shares) 395,931 410,350 411,239
Share-based compensation plan, other than stock options, weighted average grant date fair value activity      
Weighted-average Fair Value, Nonvested at the beginning of the period (in dollars per share) $ 126.36 $ 120.84 $ 120.41
Granted (in dollars per share) 141.01 146.50 138.23
Vested (in dollars per share) 98.28 128.47 141.50
Forfeited (in dollars per share) 145.26 127.90 132.52
Weighted-average Nonvested, Outstanding at the end of the period (in dollars per share) $ 144.64 $ 126.36 $ 120.84
Total fair value of equity instruments other than options vested in period (in dollars) $ 27 $ 13 $ 13
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years    
Restricted Shares      
Share-based compensation plan, other than stock options, activity      
Nonvested at the beginning of the period (in shares) 5,393 8,089 9,841
Granted (in shares) 0 0 0
Vested (in shares) (2,696) (2,696) (1,752)
Forfeited (in shares) 0 0 0
Nonvested at the end of the period (in shares) 2,697 5,393 8,089
Share-based compensation plan, other than stock options, weighted average grant date fair value activity      
Weighted-average Fair Value, Nonvested at the beginning of the period (in dollars per share) $ 117.68 $ 117.68 $ 115.76
Granted (in dollars per share) 0 0 0
Vested (in dollars per share) 117.68 117.68 106.89
Forfeited (in dollars per share) 0 0 0
Weighted-average Nonvested, Outstanding at the end of the period (in dollars per share) $ 117.68 $ 117.68 $ 117.68
Total fair value of equity instruments other than options vested in period (in dollars) $ 1 $ 1 $ 1