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Incentive Stock Programs (Tables)

12 Months Ended

Dec. 31, 2020

Incentive Stock Programs

Schedule of stock options outstanding and exercisable

​

​	​	​	​	​	​	​	​	​	​	​
​	​	​	​	​	​	​	Weighted	​	​
​	​	​	​	Weighted		​	Average	​	​
​	​	​	​	Average		​	Remaining	​	Aggregate
(intrinsic values in millions)		Options		Exercise Price			Life (Years)		Intrinsic Value
Outstanding at December 31, 2019	​	29,877,915	​	$	48.78		6.2		$	1,138
Granted		4,015,420	​		87.84	​	​	​	​	​
Exercised		(4,872,830)	​		39.62	​	​	​	​	​
Lapsed		(100,619)	​		75.22	​	​	​	​	​
Outstanding at December 31, 2020		28,919,886	​	$	55.65		6.0		$	1,557
Exercisable at December 31, 2020	​	20,390,745	​	$	46.16	​	5.0	​	$	1,291

Schedule of restricted stock awards and units activity

​

​	​	​	​	​	​
​	​	​		Weighted
​	​	​	​	Average
​		​	​	Grant-Date
​	​	Share Units	​	Fair Value
Outstanding at December 31, 2019		14,463,314	​	$	65.51
Granted		5,809,536	​		87.83
Vested		(7,167,631)	​		60.67
Forfeited		(612,351)	​		75.16
Outstanding at December 31, 2020		12,492,868	​	$	78.19

Schedule of fair value assumptions used to estimate fair value of option

​

​	​	​	​	​	​	​	​	​	​	​
​		2020			2019			2018		​
Fair value	​	$	14.39	​	$	14.50	​	$	10.93	​
Risk-free interest rate		​	1.3	%	​	2.5	%	​	2.7	%
Average life of options (years)		​	6.0	​	​	6.0	​	​	6.0	​
Volatility		​	19.4	%	​	19.8	%	​	19.0	%
Dividend yield		​	1.6	%	​	1.7	%	​	1.9	%

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Tabular disclosure of the changes in outstanding nonvested restricted stock units.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

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