Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 2020

Accumulated Other Comprehensive Income [Abstract]

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

($ in millions)	Unrealized Foreign Currency Translation Adjustments		Pension and Other Postretirement Benefit Adjustments, net of tax (c)		Unrealized Gain on Derivatives, net of tax		Accumulated Other Comprehensive Loss
January 1, 2020		($1,627)		($724)		$1		($2,350)
Current year deferrals to AOCI (a)	(758)		—		—		(758)
Current year deferrals to AOCI, net of tax (b)	62		(4)		3		61
Reclassifications from AOCI to net income	—		5		—		5
Period change		($696)		$1		$3		($692)
March 31, 2020		($2,323)		($723)		$4		($3,042)
January 1, 2019		($1,734)		($568)		$2		($2,300)
Current year deferrals to AOCI (a)	31		—		—		31
Current year deferrals to AOCI, net of tax (b)	51		(8)		—		43
Reclassifications from AOCI to net income	—		2		—		2
Period change		$82		($6)		$—		$76
March 31, 2019		($1,652)		($574)		$2		($2,224)

(a)Except for income taxes of $7 million and $6 million as of March 31, 2020 and 2019, respectively, related to foreign currency impacts of certain unasserted earnings, unrealized foreign currency translation adjustments related to translation of foreign denominated balance sheets are not presented net of tax given that no deferred U.S. income taxes have been provided on undistributed earnings of non-U.S. subsidiaries because they are deemed to be reinvested for an indefinite period of time.

(b)The tax cost related to unrealized foreign currency translation adjustments on tax inter-branch transactions and net investment hedges as of March 31, 2020 and 2019 was $19 million and $17 million, respectively.

(c)The tax cost related to the adjustment for pension and other postretirement benefits as of March 31, 2020 and 2019 was $2 million and $1 million, respectively. Reclassifications from AOCI are included in the computation of net periodic benefit costs (See Note 12, "Pensions and Other Postretirement Benefits").