Annual report pursuant to Section 13 and 15(d)

STOCK-BASED COMPENSATION - Restricted Stock Units Outstanding, Including Reinvested Dividends (Detail)

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STOCK-BASED COMPENSATION - Restricted Stock Units Outstanding, Including Reinvested Dividends (Detail) - Long Term Incentive Performance Award - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Restricted Units [Member]      
Shares      
Beginning Balance 10,139    
Vested (5,100)    
Granted 5,516    
Reinvested Dividends 410    
Forfeited / Expired (226)    
Ending Balance 10,739 10,139  
Restricted Units Expected to Vest 12,690    
Weighted-Average Grant Date Fair Value      
Beginning Balance $ 104.47    
Vested 102.54    
Granted 108.78 $ 110.95 $ 105.62
Forfeited / Expired 107.22    
Ending Balance 106.94 $ 104.47  
Restricted Units Expected to Vest $ 106.59    
Weighted-Average Remaining Contractual Term (in years)      
Nonvested at December 31, 2019 21 days    
Restricted Units Expected to Vest 22 days    
Aggregate Intrinsic Value      
Nonvested at December 31, 2019 $ 1,257    
Restricted Units Expected to Vest $ 1,485    
Restricted Units      
Shares      
Beginning Balance 1,701    
Vested (898)    
Granted 974    
Reinvested Dividends 83    
Forfeited / Expired (169)    
Ending Balance 1,691 1,701  
Restricted Units Expected to Vest 1,677    
Weighted-Average Grant Date Fair Value      
Beginning Balance $ 108.63    
Vested 106.12    
Granted 107.30 $ 111.42 $ 105.65
Forfeited / Expired 108.60    
Ending Balance 109.18 $ 108.63  
Restricted Units Expected to Vest $ 109.16    
Weighted-Average Remaining Contractual Term (in years)      
Nonvested at December 31, 2019 1 year 6 months 14 days    
Restricted Units Expected to Vest 1 year 6 months 18 days    
Aggregate Intrinsic Value      
Nonvested at December 31, 2019 $ 198    
Restricted Units Expected to Vest $ 196