Supplemental Financial Information - Financial Income (Expense) (Parenthetical) (Detail) $ in Millions |
12 Months Ended |
|---|---|
|
Dec. 31, 2018
USD ($)
| |
| Qualcomm [Member] | |
| Supplemental Financial Information [Line Items] | |
| One-time charges on financial instruments for compensation related to purchase agreement | $ 60 |