Additional Information

12 Months Ended

Dec. 31, 2011

Note 18. Additional Information:


	For the Years Ended December 31,
(in millions)	2011			2010			2009
Research and development expense	$	128		$	144		$	177

Advertising expense	$	5		$	5		$	6

Interest and other debt expense, net:
Interest expense	$	1,220		$	1,136		$	1,189
Interest income		(4	)		(3	)		(4	)

	$	1,216		$	1,133		$	1,185

Interest expense of financial services operations included in cost of sales	$	—		$	—		$	20

Rent expense	$	63		$	58		$	55

Minimum rental commitments and sublease income under non-cancelable operating leases, including amounts associated with closed facilities primarily from the integration of UST (see Note 5. Asset Impairment, Exit, Implementation and Integration Costs), in effect at December 31, 2011, were as follows:


(in millions)	Rental Commitments		Sublease Income
2012	$	56	$	2
2013		46		3
2014		37		3
2015		25		4
2016		21		4
Thereafter		110		29

	$	295	$	45