Debt and Credit Agreements (Tables)

12 Months Ended

Dec. 28, 2012

Debt Disclosure [Abstract]

Schedule of long-term debt instruments

Debt was as follows:

	Maturity at December	Average Interest Rates at December	December			December
(Dollars in Millions)	2012	2012	2012			2011
Notes	2013-2044	5.8%	$	9,151		$	8,486
Equipment Obligations(a)	2013-2023	7.2%	667			741
Capital Leases	2013-2026	11.1%	12			10
Convertible Debentures	2021	1.0%	2			4
Subtotal Long-term Debt (including current portion)			$	9,832		$	9,241
Less Debt Due within One Year			(780		)	(507		)
Long-term Debt (excluding current portion)			$	9,052		$	8,734

(a) These obligations are secured by an interest in certain railroad equipment.

Schedule of long-ter debt maturities

Long-term Debt Maturities

(Dollars in Millions)	Maturities as of
Fiscal Years Ending	December 2012
2013	$	780
2014	527
2015	629
2016	22
2017	631
Thereafter	7,243
Total Long-term Debt Maturities (including current portion)	$	9,832