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Debt (Tables)

6 Months Ended

Jun. 30, 2015

Debt Disclosure [Abstract]

Fair value and carrying value of long-term debt, including current maturities

The approximate fair value and related carrying value of the Company's total long-term debt, including current maturities of long-term debt presented as short-term debt, as of June 30, 2015 and December 31, 2014 were as follows:

In millions	June 30, 2015				December 31, 2014
Fair value	$	7,131			$	6,431
Carrying value	6,995				5,982

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- Definition

Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation.

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