Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2015

Long-term Debt, Unclassified [Abstract]

Long-term debt

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

(Millions of dollars)
	2015				2014
	Balance			Avg. Rate	Balance			Avg. Rate
Medium-term notes	$	20,611		2.4%	$	23,094		2.4%
Unamortized discount	(1		)		(4		)
Medium-term notes, net	20,610				23,090
Bank borrowings	995			4.0%	1,484			3.4%
Total	$	21,605			$	24,574

Aggregate amounts of maturities of long-term debt

 Long-term debt outstanding as of December 31, 2015, matures as follows: 

(Millions of dollars)
2016	$	5,362
2017	5,866
2018	4,154
2019	2,531
2020	1,125
Thereafter	2,567
Total	$	21,605