Fair Value of Financial Instruments (Tables) (Unaudited)

9 Months Ended

Sep. 30, 2011

FAIR VALUE OF FINANCIAL INSTRUMENTS [Abstract]

Fair value information of assets and liabilities measured at fair value on a recurring basis

$ in millions	September 30, 2011						December 31, 2010
Financial Assets (Liabilities)	Carrying Value			Fair Value			Carrying Value			Fair Value
Marketable Securities (1)
Trading		$     215			$     215			$     320			$     320
Available-for-Sale		6			6			10			10
Derivatives		9			9			11			11
Long-term debt, including current portion		$(3,975	)		$(4,760	)		$(4,724	)		$(5,100	)

(1) Includes $1 million and $68 million in prepaid and other current assets and $220 million and $262 million in miscellaneous other assets at September 30, 2011, and December 31, 2010, respectively.

Notional values of our derivative portfolio

$ in millions	2011		2010
Designated as cash flow hedges:
Foreign currency buy	$	39	$	40
Foreign currency sell		116		86
Interest rate swaps				200
Not designated as cash flow hedges:
Foreign currency buy		2		8
Foreign currency sell		77		75
Total notional value	$	234	$	409