Credit commitments (Tables)

12 Months Ended

Dec. 31, 2018

Credit Commitments [Abstract]

Credit commitments

	December 31, 2018
(Millions of dollars)	Consolidated			Machinery, Energy & Transportation		Financial Products
Credit lines available:
Global credit facilities	$	10,500		$	2,750	$	7,750
Other external	4,577			—		4,577
Total credit lines available	15,077			2,750		12,327
Less: Commercial paper outstanding	(4,759		)	—		(4,759		)
Less: Utilized credit	(1,172		)	—		(1,172		)
Available credit	$	9,146		$	2,750	$	6,396