Short-Term Borrowings (Tables)

12 Months Ended

Dec. 31, 2012

Short-term Debt [Abstract]

Short-term borrowings

Short-term borrowings outstanding as of December 31, were comprised of the following: 

(Millions of dollars)
	2012			2011			2010
	Balance		Avg. Rate	Balance		Avg. Rate	Balance		Avg. Rate
Commercial paper, net	$	3,654	0.6%	$	2,818	1.0%	$	2,710	1.5%
Bank borrowings	418		5.6%	527		7.3%	479		4.9%
Variable denomination floating    rate demand notes	579		0.8%	550		0.9%	663		1.1%
Total	$	4,651		$	3,895		$	3,852