Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Significant Accounting Policies

Changes in warranty liabilities

Standard Warranty Liability

($ in millions)

	2018			2017
Balance at January 1	$	152		$	156
Current period accruals	121			172
Accrual adjustments to reflect experience	(32		)	(10		)
Charges incurred	(123		)	(165		)
Balance at December 31	$	118		$	152

Extended Warranty Liability (Deferred Income)

($ in millions)

	2018			2017
Balance at January 1	$	566		$	531
Revenue deferred for new extended warranty contracts	220			267
Amortization of deferred revenue	(240		)	(260		)
Other*	(13		)	28
Balance at December 31	$	533		$	566
Current portion	$	271		$	277
Noncurrent portion	$	262		$	289

*Other consists primarily of foreign currency translation adjustments.