FAIR VALUE OF FINANCIAL INSTRUMENTS (Debt Narrative) (Detail) (Estimate Of Fair Value Fair Value Disclosure [Member], USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Estimate Of Fair Value Fair Value Disclosure [Member]
DebtInstrumentLineItems
LongtermDebtPercentageBearingFixedInterestAmount	$ 596	$ 615

The portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

No definition available.

Name:	us-gaap_LongtermDebtPercentageBearingFixedInterestAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant