Commitments (Tables)

9 Months Ended

Sep. 30, 2015

Commitments:

Changes in warranty liabilities

Standard Warranty Liability
(Dollars in millions)	2015		2014
Balance at January 1	$	197	$	376
Current period accruals		117		186
Accrual adjustments to reflect actual experience		4		6
Charges incurred		(147)		(252)
Balance at September 30	$	172	$	316

Extended Warranty Liability
(Dollars in millions)	2015		2014
Aggregate deferred revenue at January 1	$	536	$	579
Revenue deferred for new extended warranty contracts		182		195
Amortization of deferred revenue		(192)		(214)
Other*		(28)		(21)
Aggregate deferred revenue at September 30	$	498	$	539
Current portion	$	232	$	257
Noncurrent portion	$	267	$	282
* Other primarily consists of foreign currency translation adjustments.