Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2012

Long-term Debt, Unclassified [Abstract]

Long-term debt

Long-term debt outstanding as of December 31, was comprised of the following: 

(Millions of dollars)
	2012				2011				2010
	Balance			Avg. Rate	Balance			Avg. Rate	Balance			Avg. Rate
Medium-term notes	$	23,488		3.2%	$	20,058		3.9%	$	17,690		4.6%
Unamortized discount	(13		)		(10		)		(9		)
Medium-term notes, net	23,475				20,048				17,681
Bank borrowings	1,602			4.1%	1,583			3.7%	1,603			3.8%
Secured borrowings	—				—				78			4.9%
Total	$	25,077			$	21,631			$	19,362

Aggregate amounts of maturities of long-term debt

 Long-term debt outstanding as of December 31, 2012, matures as follows: 

(Millions of dollars)
2013	$	5,991
2014	6,559
2015	4,648
2016	2,027
2017	2,693
Thereafter	3,159
Total	$	25,077