Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events - Additional Information (Detail)

v3.20.2
Subsequent Events - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
Jul. 13, 2020
Jun. 30, 2020
Oct. 30, 2018
Subsequent Event [Line Items]      
Share repurchase program authorized amount   $ 1,500 $ 1,500
Subsequent Event [Member]      
Subsequent Event [Line Items]      
Share repurchase program authorized amount $ 750    
Minimum [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Average cost per share of shares repurchased $ 44.75    
Maximum [Member] | Subsequent Event [Member]      
Subsequent Event [Line Items]      
Average cost per share of shares repurchased $ 50.00