Commitments & Contingencies (Tables)

12 Months Ended

Dec. 31, 2019

Commitments & Contingencies

Changes in warranty liabilities

Standard Warranty Liability

($ in millions)	2019		2018
Balance at January 1	$	118	$	152
Current period accruals		111		121
Accrual adjustments to reflect experience		(1)		(32)
Charges incurred		(115)		(123)
Balance at December 31	$	113	$	118

Extended Warranty Liability (Deferred Income)

($ in millions)	2019		2018
Balance at January 1	$	533	$	566
Revenue deferred for new extended warranty contracts		198		220
Amortization of deferred revenue		(253)		(240)
Other*		(2)		(13)
Balance at December 31	$	477	$	533
Current portion	$	227	$	271
Noncurrent portion	$	250	$	262

* Other consists primarily of foreign currency translation adjustments.