Commitments and Contingencies (Tables)

3 Months Ended

Mar. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Guarantee obligations [Table Text Block]

The maximum potential payments and the carrying value of recorded liabilities related to guarantees and limited indemnities were as follows (in millions):

	December 31, 2018		March 31, 2019
Maximum potential payments	$	1,163	$	1,115
Carrying value of recorded liabilities related to guarantees and limited indemnities	351		350

Warranty [Table Text Block]

The estimate of our future warranty and field service action costs, net of estimated supplier recoveries, for the periods ended March 31 was as follows (in millions):

	First Quarter
	2018			2019
Beginning balance	$	5,296		$	5,137
Payments made during the period	(963		)	(1,074		)
Changes in accrual related to warranties issued during the period	629			693
Changes in accrual related to pre-existing warranties	185			271
Foreign currency translation and other	9			7
Ending balance	$	5,156		$	5,034