Fair Value Measurements and Derivatives - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	1 Months Ended	12 Months Ended
	Dec. 31, 2009	Dec. 31, 2009	Dec. 31, 2011	Dec. 31, 2010
Fair Value, Measurement Inputs, Disclosure [Line Items]
Notional amounts of derivatives			$ 213	$ 94
Deferred losses which are reported in AOCI that are expected to be reclassified to earnings during the next twelve months			13
Impairment of assets	150	150
Property, plant and equipment			4
Cross Currency Swap
Fair Value, Measurement Inputs, Disclosure [Line Items]
Notional amounts of derivatives				14
Fair Value, Inputs, Level 3
Fair Value, Measurement Inputs, Disclosure [Line Items]
Intangible assets	16	16
Property, plant and equipment	$ 65	$ 65