Accumulated Other Comprehensive Loss (AOCL) (Tables)

9 Months Ended

Sep. 30, 2023

Accumulated Other Comprehensive Income [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

($ in millions)	Foreign Currency Translation Adjustments (a)	Pension and Other Postretirement Benefit Adjustments, net of tax (b)	Unrealized Gain on Derivatives, net of tax	Accumulated Other Comprehensive Loss
January 1, 2022	($1,988)	($763)	$1	($2,750)
Current year deferrals to AOCL	(537)	(9)	—	(546)
Reclassifications from AOCL to net income	10	20	—	30
September 30, 2022	($2,515)	($752)	$1	($3,266)
January 1, 2023	($2,254)	($557)	$1	($2,810)
Current year deferrals to AOCL	170	(14)	—	156
Reclassifications from AOCL to net income	30	152	—	182
September 30, 2023	($2,054)	($419)	$1	($2,472)

(a)The tax cost related to unrealized foreign currency translation adjustments on net investment hedges was $85 million and $96 million as of September 30, 2023 and 2022, respectively.

(b)The tax (benefit)/cost related to the adjustment for pension and other postretirement benefits was $(47) million and $6 million for the nine months ended September 30, 2023 and 2022, respectively. Reclassifications from AOCL are included in the computation of net periodic benefit cost (See Note 10, "Pensions and Other Postretirement Benefits").