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Debt (Tables)

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Schedule of Guarantor Obligations

Debt and other obligations of non-consolidated entities guaranteed by the Company as of June 30, 2013, were as follows (dollars in millions):



	Guarantees
	BNSF Ownership Percentage			Principal Amount Guaranteed				Maximum Future Payments				Maximum Recourse Amount^a				Remaining Term (in years)			Capitalized Obligations
Kinder Morgan Energy Partners, L.P.	0.5	%		$	190			$	190			$	—			Termination of Ownership			$	2		^b
Chevron Phillips Chemical Company LP	—	%		N/A^d				N/A^d				N/A^d				4			$	7		^c


^a	Reflects the maximum amount the Company could recover from a third party other than the counterparty.


^b	Reflects capitalized obligations that are recorded on the Company’s Consolidated Balance Sheet.


^c	Reflects the asset and corresponding liability for the fair value of these guarantees required by authoritative accounting guidance related to guarantees.


^d	There is no cap to the liability that can be sought from BNSF for BNSF’s negligence or the negligence of the indemnified party. However, BNSF could receive reimbursement from certain insurance policies if the liability exceeds a certain amount.