Debt (Tables)

6 Months Ended

Jun. 30, 2013

Debt Disclosure [Abstract]

Debt

	Weighted-Average Interest Rate
	June 30, 2013	December 31, 2012	Maturities	June 30, 2013			December 31, 2012
				(In thousands)
Short-term debt and current portion of long-term debt:
Short-term debt	1.33%	2.27%	2013	$	394		9,820
Current portion of long-term debt, including capital leases				258,303			358,155
Total short-term debt and current portion of long-term debt				258,697			367,975
Long-term debt:
U.S. commercial paper (1)	0.31%	0.41%	2016	531,922			329,925
Canadian commercial paper (1)	1.10%	1.14%	2016	1,901			23,165
Global revolving credit facility	1.57%	1.58%	2016	5,063			8,924
Unsecured U.S. notes — Medium-term notes (1)	3.95%	4.01%	2014-2025	2,971,712			2,971,313
Unsecured U.S. obligations, principally bank term loans	1.48%	1.56%	2015-2019	55,500			105,500
Unsecured foreign obligations	1.91%	1.91%	2014-2016	293,768			313,406
Capital lease obligations	4.00%	4.08%	2013-2019	43,789			42,018
Total before fair market value adjustment				3,903,655			3,794,251
Fair market value adjustment on notes subject to hedging (2)				10,358			16,725
				3,914,013			3,810,976
Current portion of long-term debt, including capital leases				(258,303		)	(358,155	)
Long-term debt				3,655,710			3,452,821
Total debt				$	3,914,407		3,820,796

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(1) We had unamortized original issue discounts of $8.4 million and $8.8 million at June 30, 2013 and December 31, 2012, respectively.

(2) The notional amount of executed interest rate swaps designated as fair value hedges was $300 millionand $550 million at June 30, 2013 and December 31, 2012, respectively.