Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2016

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 at December 31 were as follows (in millions):

	2015		2016
Maximum potential payments	$	284	$	177
Carrying value of recorded liabilities related to guarantees and limited indemnities	23		23

Warranty [Table Text Block]

The estimate of our future warranty and field service action costs, net of supplier recoveries, for the years ended December 31 were as follows (in millions):

	2015			2016
Beginning balance	$	4,786		$	4,558
Payments made during the period	(2,849		)	(3,286		)
Changes in accrual related to warranties issued during the period	2,046			2,326
Changes in accrual related to pre-existing warranties	807			1,360
Foreign currency translation and other	(232		)	2
Ending balance	$	4,558		$	4,960