Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2018

Long-term Debt, Unclassified [Abstract]

Long-term debt

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

(Millions of dollars)
	2018				2017
	Balance			Avg. Rate	Balance			Avg. Rate
Medium-term notes	$	22,226		2.6%	$	21,362		2.5%
Unamortized discount and debt issuance costs	(57		)		(59		)
Medium-term notes, net	22,169				21,303
Bank borrowings	646			5.8%	803			5.0%
Total	$	22,815			$	22,106

Aggregate amounts of maturities of long-term debt

Long-term debt outstanding as of December 31, 2018, matures as follows: 

(Millions of dollars)
2019	$	5,820
2020	6,407
2021	4,884
2022	2,053
2023	2,158
Thereafter	1,493
Total	$	22,815