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LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES (Tables)

12 Months Ended

Dec. 31, 2012

Changes in the Reserve for Environmental Remediation



DOLLAR AMOUNTS IN MILLIONS
Reserve balance as of December 31, 2011	$	34
Reserve charges and adjustments, net	4
Payments	(6		)
Reserve balance as of December 31, 2012	$	32
Total active sites as of December 31, 2012	53

Changes in the Reserve for Asset Retirement Obligations



DOLLAR AMOUNTS IN MILLIONS
Reserve balance as of December 31, 2011	$	65
Reserve charges and adjustments, net	8
Payments	(10		)
Reserve balance as of December 31, 2012	$	63

Unrecorded Unconditional Purchase Obligations Disclosure

Our purchase obligations as of December 31, 2012 were:



DOLLAR AMOUNTS IN MILLIONS
	DECEMBER 31, 2012
2013	$	105
2014	$	7
2015	$	5
2016	$	2
2017	$	2
Thereafter	$	9

Schedule of Rent Expense

Our rent expense was:



DOLLAR AMOUNTS IN MILLIONS
	2012		2011		2010
Rent expense	$	42	$	47	$	55

Schedule of Future Minimum Rental Payments for Operating Leases

Our operating lease commitments as of December 31, 2012 were:



DOLLAR AMOUNTS IN MILLIONS
	DECEMBER 31, 2012
2013	$	35
2014	$	27
2015	$	18
2016	$	15
2017	$	11
Thereafter	$	108

- Definition

Tabular disclosure of unconditional purchase obligations that are not recognized as a liability on the balance sheet, including the nature and significant terms of an unconditional purchase obligation; the amount of the fixed and determinable portion of the obligation as of the date of the latest balance sheet presented in the aggregate and, if determinable, for each of the five succeeding fiscal years; the nature of any variable components of the obligation; the amount purchased under the obligation (for example, the take-or-pay or throughput contract) for the reporting period; and may include the amount of imputed interest necessary to reduce the obligation to present value.

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