XML 87 R68.htm IDEA: XBRL DOCUMENT v3.22.0.1
Capital Stock and Stock-Based Compensation Plans - Narrative (Details)
$ / shares in Units, $ in Millions
12 Months Ended
Dec. 31, 2021
USD ($)
plan
$ / shares
shares
Dec. 31, 2020
USD ($)
$ / shares
shares
Dec. 31, 2019
USD ($)
$ / shares
shares
Jun. 18, 2018
USD ($)
Preference Stock [Abstract]        
Shares authorized (in shares) | shares 50,262,150      
Stock Repurchases [Abstract]        
Repurchased stock $ 1,320 $ 1,476 $ 1,202  
Stock-Based Compensation [Abstract]        
Number of stockholder approved plans, current | plan 1      
Total stock-based compensation expense charged against pretax income $ 135 107 100  
Total income tax benefit from stock compensation $ 25 $ 20 $ 20  
Weighted-average estimated fair value of stock options granted (in dollars per share) | $ / shares $ 11.11 $ 11.26 $ 10.48  
Stock-based compensation, additional disclosures [Abstract]        
Tax benefit from exercise of stock options and vesting of restricted stock unit awards $ 9 $ 8 $ 6  
Proceeds from exercise of stock options $ 424 $ 874 498  
Stock Option Plans        
Additional disclosures pertaining to stock based compensation [Abstract]        
Vesting period (in years) 3 years      
Unrecognized compensation expense $ 32      
Number of shares available for grant (in shares) | shares 26,038,000      
Unrecognized compensation expense, weighted-average period of recognition in years 1 year 6 months      
Stock-based compensation, additional disclosures [Abstract]        
Contractual term (in years) 8 years 6 years    
Total intrinsic value of options exercised $ 83 $ 136 $ 84  
Performance Shares | Incentive Stock Plans        
Additional disclosures pertaining to stock based compensation [Abstract]        
Vesting period (in years) 3 years      
Unrecognized compensation expense $ 26      
Time-Vested Stock | Incentive Stock Plans        
Additional disclosures pertaining to stock based compensation [Abstract]        
Vesting period (in years) 3 years      
Unrecognized compensation expense $ 56      
Number of shares available for grant (in shares) | shares 10,990,000 0 0  
Unrecognized compensation expense, weighted-average period of recognition in years 2 years      
Total fair value of shares vested $ 47 $ 58 $ 53  
Program 2018        
Stock Repurchases [Abstract]        
Stock repurchase program, authorized amount       $ 5,000
Repurchased stock $ 1,320