Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Significant Accounting Policies

Changes in warranty liabilities

Standard Warranty Liability

($ in millions)

	2012			2011
Balance at January 1	$	407		$	375
Current period accruals	394			435
Accrual adjustments to reflect actual experience	(15		)	18
Charges incurred	(392		)	(420		)
Balance at December 31	$	394		$	407

Extended Warranty Liability (Deferred Income)

($ in millions)

	2012			2011
Balance at January 1	$	636		$	670
Revenue deferred for new extended warranty contracts	268			314
Amortization of deferred revenue	(301		)	(330		)
Other*	4			(19		)
Balance at December 31	$	606		$	636
Current portion	$	289		$	301
Noncurrent portion	317			335
Balance at December 31	$	606		$	636

* Other consists primarily of foreign currency translation adjustments.