Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Changes in warranty liabilities

Standard Warranty Liability
($ in millions)
		2013		2012
Balance at January 1	$	394	$	407
Current period accruals		346		394
Accrual adjustments to reflect experience		22		(15)
Changes incurred		(387)		(392)
Balance at December 31	$	376	$	394

Extended Warranty Liability (Deferred Income)
($ in millions)
		2013		2012
Balance at January 1	$	606	$	636
Revenue deferred for new extended warranty contracts		305		268
Amortization of deferred revenue		(324)		(301)
Other*		(8)		4
Balance at December 31	$	579	$	606
Current portion	$	284	$	289
Noncurrent portion		295		317
Balance at December 31	$	579	$	606
* Other consists primarily of foreign currency translation adjustments.