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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]



	(in millions)
2013	$	1,880
2014	1,863
2015	1,668
2016	1,542
2017	1,437
2018 and thereafter	7,276
	$	15,666

Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block]



	(in millions)
2013	$	17,464
2014	5,357
2015	4,798
2016	1,046
2017	643
2018 and thereafter	1,156
	$	30,464

- 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.

+ References+ Details