Financial Instruments and Fair Value Measurements - Additional Information (Detail) ¥ in Billions |
3 Months Ended | 9 Months Ended | ||||
|---|---|---|---|---|---|---|
|
Sep. 30, 2017
USD ($)
Derivative
|
Sep. 30, 2016
USD ($)
|
Sep. 30, 2017
USD ($)
Derivative
|
Sep. 30, 2016
USD ($)
|
Dec. 31, 2016
USD ($)
Derivative
|
Sep. 30, 2016
JPY (¥)
|
|
| Derivatives Fair Value [Line Items] | ||||||
| Hedge ineffectiveness | $ 0 | $ 0 | ||||
| Number of interest rate swaps hedges outstanding | Derivative | 3 | 3 | 3 | |||
| Derivative contract entered or settlement of interest rate swaps | $ 0 | 0 | ||||
| Foreign currency translation gains (losses) | $ 147,600,000 | $ (40,800,000) | 474,100,000 | (22,000,000) | ||
| Interest Rate Swaps [Member] | ||||||
| Derivatives Fair Value [Line Items] | ||||||
| Notional value of derivative | $ 271,200,000 | $ 271,200,000 | $ 271,200,000 | |||
| Derivative settlement amount | $ 924,600,000 | $ 924,600,000 | ¥ 105.9 | |||