Business Restructuring (Tables)

12 Months Ended

Dec. 31, 2021

Restructuring and Related Activities [Abstract]

Activity Related to Restructuring Reserves

The following table summarizes restructuring reserve activity for the years ended December 31, 2021 and 2020:

	Total Reserve
($ in millions)	2021	2020
January 1	$293	$224
Approved restructuring actions	54	203
Release of prior reserves and other adjustments(a)	(23)	(29)
Cash payments	(77)	(126)
Foreign currency impact	(16)	21
December 31	$231	$293

(a)Certain releases were recorded to reflect the current estimate of costs to complete planned business restructuring actions.