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Financial Instruments and Fair Value Measurements - Additional Information (Detail)
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3 Months Ended | 9 Months Ended | 12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2014
USD ($)
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Sep. 30, 2013
USD ($)
|
Sep. 30, 2014
USD ($)
|
Sep. 30, 2013
USD ($)
|
Sep. 30, 2014
Foreign Currency Forward Contracts [Member]
USD ($)
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Dec. 31, 2013
Foreign Currency Forward Contracts [Member]
USD ($)
|
Sep. 30, 2014
Foreign Currency Forward Contracts [Member]
EUR (€)
|
Feb. 28, 2014
Foreign Currency Forward Contracts [Member]
USD ($)
|
Feb. 28, 2014
Foreign Currency Forward Contracts [Member]
EUR (€)
|
Dec. 31, 2013
Foreign Currency Forward Contracts [Member]
EUR (€)
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| Derivative [Line Items] | ||||||||||
| Debt issued | $ 8,813,000,000 | $ 8,813,000,000 | $ 2,400,000,000 | $ 1,000,000,000 | € 1,900,000,000 | $ 1,600,000,000 | € 1,200,000,000 | € 700,000,000 | ||
| Amount of gain (loss) included in AOCI | (130,763,000) | 88,001,000 | (72,022,000) | (250,251,000) | 214,600,000 | (14,900,000) | ||||
| Hedge ineffectiveness | $ 0 | $ 0 | $ 0 | $ 0 | ||||||