Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2013

Schedule of Intangible Assets by Major Class

The gross book value, accumulated amortization and net book value of intangible assets were as follows:

										(Stated in millions)
	Sept. 30, 2013						Dec. 31, 2012
	Gross BookValue		Accumulated Amortization		NetBook Value		Gross BookValue		Accumulated Amortization		NetBook Value
Technology/Technical Know-How	$	1,958	$	563	$	1,395	$	1,967	$	474	$	1,493
Tradenames		1,647		240		1,407		1,647		188		1,459
Customer Relationships		2,235		381		1,854		2,115		312		1,803
Other		407		331		76		369		322		47
	$	6,247	$	1,515	$	4,732	$	6,098	$	1,296	$	4,802

Amortization Expense Charged to Income for Intangible Assets

Amortization expense charged to income was as follows:

	(Statedinmillions)
	2013		2012
Third Quarter	$	80	$	84
Nine Months	$	244	$	245