Quarterly report pursuant to Section 13 or 15(d)

Activity in Deferred Compensation Program (Detail)

v3.20.1
Activity in Deferred Compensation Program (Detail) - USD ($)
shares in Millions, $ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Stockholders Equity Note [Roll Forward]    
Balance at beginning of period $ 3,267  
Balance at beginning of period 0.4  
Balance at end of period $ 3,299  
Balance at end of period 0.4  
Treasury Stock [Member]    
Stockholders Equity Note [Roll Forward]    
Balance at beginning of period $ (26) $ (32)
Balance at beginning of period 0.0 (1.0)
Reinvested dividends $ 0 $ (1)
Reinvested dividends 0.0 0.0
Benefit payments 0.0 0.0
Benefit payments $ (7) $ (8)
Balance at end of period $ (19) $ (25)
Balance at end of period 0.0 1.0
Deferred Compensation Obligations    
Stockholders Equity Note [Roll Forward]    
Balance at beginning of period $ 26 $ 32
Reinvested dividends 0 1
Benefit payments (7) (8)
Balance at end of period $ 19 $ 25