Quarterly report pursuant to Section 13 or 15(d)

Activity in Deferred Compensation Program (Detail)

v3.19.3
Activity in Deferred Compensation Program (Detail) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period     $ 3,021  
Balance at beginning of period     1  
Balance at end of period $ 5,558   $ 5,558  
Balance at end of period 0   0  
Treasury Stock [Member]        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period $ (25) $ (31) $ (32) $ (37)
Balance at beginning of period 0 (1) (1) (1)
Reinvested dividends $ 0 $ (1) $ (1) $ (2)
Reinvested dividends 0 0 0 0
Benefit payments 0 0 1 0
Benefit payments $ 0 $ 0 $ (8) $ (7)
Balance at end of period $ (25) $ (32) $ (25) $ (32)
Balance at end of period 0 1 0 1
Deferred Compensation Obligations        
Stockholders Equity Note [Roll Forward]        
Balance at beginning of period $ 25 $ 31 $ 32 $ 37
Reinvested dividends 0 1 1 2
Benefit payments 0 0 (8) (7)
Balance at end of period $ 25 $ 32 $ 25 $ 32