Quarterly report pursuant to Section 13 or 15(d)

Activity in Deferred Compensation Program (Detail)

v3.19.2
Activity in Deferred Compensation Program (Detail) - USD ($)
shares in Millions, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2019
Jun. 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 $ 4,405 $ 4,405  
Balance at end of period 0 0  
Treasury Stock [Member]      
Stockholders Equity Note [Roll Forward]      
Balance at beginning of period $ (25) $ (32) $ (37)
Balance at beginning of period (1) (1) (1)
Reinvested dividends   $ (1) $ (1)
Benefit payments 1 1  
Benefit payments   $ 8 7
Balance at end of period $ (25) $ (25) $ (31)
Balance at end of period 0 0 1
Deferred Compensation Obligations      
Stockholders Equity Note [Roll Forward]      
Balance at beginning of period $ 25 $ 32 $ 37
Reinvested dividends   1 1
Benefit payments   8 7
Balance at end of period $ 25 $ 25 $ 31