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Equity Compensation Plans (Tables)
 12 Months Ended
Dec. 31, 2021
Share-based Payment Arrangement [Abstract]  
Schedule of Equity-Based Compensation Expense The following table details the components of equity-based compensation expense recognized in net earnings in each of the past three years:
Year Ended December 31202120202019
Stock options$46 $43 $43 
Restricted stock/RSUs53 58 62 
Total equity-based compensation expense, net of tax$99 $101 $105 
Schedule of Assumptions Of Fair Value Options On The Date Of Grant Using Black-Scholes Option Pricing Model We estimate the fair value of stock options on the date of grant using the Black-Scholes option pricing model with the following assumptions for each of the past three years:
Year Ended December 31202120202019
Expected volatility
26.7-27.3%
21.1-26.9%
19.7-20.0%
Weighted average expected volatility27.3 %21.2 %19.7 %
Expected term (in months)606064
Risk-free interest rate
0.6-1.2%
0.4-1.5%
1.7-2.6%
Expected dividend yield2.9 %2.4 %2.0 %
Schedule of Stock Option Activity
A summary of stock option activity during 2021 follows:
In Shares and DollarsShares Under Option Weighted Average
Exercise Price Per Share
Outstanding on December 31, 202011,128,721 $167.00 
Granted2,266,080 169.01 
Exercised(1,272,976)134.46 
Forfeited/canceled(191,411)168.44 
Outstanding on December 31, 202111,930,414 $170.83 
Vested and expected to vest on December 31, 202111,582,836 $170.94 
Exercisable on December 31, 20216,495,518 $173.89 
Schedule of Stock Options' Intrinsic Value And Remaining Contractual Term
Summary information with respect to our stock options’ intrinsic value and remaining contractual term on December 31, 2021, follows:
Weighted Average  Remaining Contractual Term (in years)Aggregate Intrinsic
Value
Outstanding6.6$471 
Vested and expected to vest6.6457 
Exercisable5.1247 
Schedule of Restricted Stock And Restricted Stock Unit Activity
A summary of restricted stock and RSU activity during 2021 follows:
In Shares and DollarsShares/
Share-Equivalent 
Units		Weighted Average
Grant-Date Fair Value Per Share
Nonvested at December 31, 20201,150,151 $180.98 
Granted492,104 174.34 
Vested(302,186)220.91 
Forfeited(19,591)167.61 
Nonvested at December 31, 20211,320,478 $169.54