|
Financial Instruments - Impact of Changes in Fair Values of Derivatives (Detail) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
|
| Derivatives, Fair Value [Line Items] | |||
| Derivative Instruments, Amount of Gain (Loss) Recognized Income (Loss) | $ (7) | $ (4) | $ (15) |
|
Derivatives Designated as Hedging Instruments [Member] | Interest rate caps [Member]
|
|||
| Derivatives, Fair Value [Line Items] | |||
| Derivative Instruments, Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss) | (4) | ||
|
Derivatives Designated as Hedging Instruments [Member] | Interest rate caps [Member] | Interest Expense, Net [Member]
|
|||
| Derivatives, Fair Value [Line Items] | |||
| Derivative Instruments, Amount of Gain (Loss) Recognized Income (Loss) | |||
|
Derivatives Designated as Hedging Instruments [Member] | Interest Rate Swaps [Member]
|
|||
| Derivatives, Fair Value [Line Items] | |||
| Derivative Instruments, Amount of Gain (Loss) Recognized in Other Comprehensive Income (Loss) | |||
|
Derivatives Designated as Hedging Instruments [Member] | Interest Rate Swaps [Member] | Interest Expense, Net [Member]
|
|||
| Derivatives, Fair Value [Line Items] | |||
| Derivative Instruments, Amount of Gain (Loss) Recognized Income (Loss) | (9) | ||
|
Derivatives Not Designated as Hedging Instruments [Member] | Interest Rate Swaps [Member] | Interest Expense, Net [Member]
|
|||
| Derivatives, Fair Value [Line Items] | |||
| Derivative Instruments, Amount of Gain (Loss) Recognized Income (Loss) | (3) | (4) | (4) |
|
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Exchange Impact of Cross Currency Swaps [Member] | Selling, General and Administrative [Member]
|
|||
| Derivatives, Fair Value [Line Items] | |||
| Derivative Instruments, Amount of Gain (Loss) Recognized Income (Loss) | 14 | ||
|
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Currency Contracts [Member] | Selling, General and Administrative [Member]
|
|||
| Derivatives, Fair Value [Line Items] | |||
| Derivative Instruments, Amount of Gain (Loss) Recognized Income (Loss) | $ (4) | $ (16) | |