Commitments & Contingencies (Tables)

12 Months Ended

Dec. 31, 2020

Commitments & Contingencies

Changes in warranty liabilities

Standard Warranty Liability

($ in millions)
	2020		2019
Balance at January 1	$	113	$	118
Current period accruals		83		111
Accrual adjustments to reflect experience		(16)		(1)
Charges incurred		(96)		(115)
Balance at December 31	$	83	$	113

Extended Warranty Liability (Deferred Income)

($ in millions)
	2020		2019
Balance at January 1	$	477	$	533
Revenue deferred for new extended warranty contracts		166		198
Amortization of deferred revenue		(224)		(253)
Other*		6		(2)
Balance at December 31	$	425	$	477
Current portion	$	204	$	227
Noncurrent portion	$	221	$	250

* Other consists primarily of foreign currency translation adjustments.