Guarantees (Tables)

12 Months Ended

Dec. 31, 2018

Guarantees [Abstract]

Schedule of Guarantor Obligations [Table Text Block]

As of December 31, 2018 and 2017, the following financial guarantees were outstanding:

	December 31, 2018				December 31, 2017
(dollars in millions)	Maximum Potential Payment		Carrying Amount of Liability		Maximum Potential Payment		Carrying Amount of Liability
Commercial aerospace financing arrangements (see Note 5)	$	348	$	9	$	336	$	8
Credit facilities and debt obligations (expire 2019 to 2028)	116		—		256		15
Performance guarantees	55		5		56		2

Product Warranty Disclosure [Table Text Block]

The changes in the carrying amount of service and product warranties and product performance guarantees for the years ended December 31, 2018 and 2017 are as follows:

(dollars in millions)	2018			2017
Balance as of January 11	$	1,146		$	1,199
Warranties and performance guarantees issued	604			323
Settlements made	(493		)	(207		)
Other 2	192			9
Balance as of December 31	$	1,449		$	1,324

1 Change in beginning balance due to revenue recognition reclassification of extended warranty to net contract asset/liability.

2 Increase in Other is driven by Rockwell Collins acquisition.