Annual report pursuant to Section 13 and 15(d)

STOCK INCENTIVE AND STOCK OPTION PLANS (Details 3)

v3.8.0.1
STOCK INCENTIVE AND STOCK OPTION PLANS (Details 3) - USD ($)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Black-Scholes option pricing model assumptions      
Expected life 6 years 5 years 5 years
Risk-free interest rate 2.08% 1.34% 1.41%
Expected volatility 29.97% 30.96% 33.06%
Dividend yield 2.28% 2.10% 1.69%
Performance Shares      
Share-based compensation plan, other than stock options, activity      
Nonvested at the beginning of the period (in shares) 404,494 420,369 466,693
Granted (in shares) 150,225 169,150 133,975
Vested (in shares) (85,020) (115,680) (112,901)
Forfeited (in shares) (58,460) (69,345) (67,398)
Nonvested at the end of the period (in shares) 411,239 404,494 420,369
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) $ 120.41 $ 123.88 $ 119.78
Granted (in dollars per share) 138.23 98.26 128.48
Vested (in dollars per share) 141.50 106.55 115.48
Forfeited (in dollars per share) 132.52 110.52 118.71
Weighted-average Nonvested, Outstanding at the end of the period (in dollars per share) $ 120.84 $ 120.41 $ 123.88
Total fair value of equity instruments other than options vested in period (in dollars) $ 13 $ 12 $ 11
Restricted Shares      
Share-based compensation plan, other than stock options, activity      
Nonvested at the beginning of the period (in shares) 9,841 4,254 11,275
Granted (in shares) 0 8,089 0
Vested (in shares) (1,752) (2,502) (7,021)
Forfeited (in shares) 0 0 0
Nonvested at the end of the period (in shares) 8,089 9,841 4,254
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) $ 115.76 $ 111.40 $ 110.94
Granted (in dollars per share) 0 117.69 0
Vested (in dollars per share) 106.89 114.57 110.66
Forfeited (in dollars per share) 0 0 0
Weighted-average Nonvested, Outstanding at the end of the period (in dollars per share) $ 117.68 $ 115.76 $ 111.40
Total fair value of equity instruments other than options vested in period (in dollars)   $ 1 $ 1
Maximum | Restricted Shares      
Share-based compensation plan, other than stock options, weighted average grant date fair value activity      
Total fair value of equity instruments other than options vested in period (in dollars) $ 1