Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Equity and Accumulated Other Comprehensive Earnings

Schedule of activity related to accumulated other comprehensive earnings (loss)

($ in millions)	Foreign Currency Translation (Net of Tax)		Pension and Other Postretirement Benefits (Net of Tax)		Derivatives Designated as Hedges (Net of Tax)		Accumulated Other Comprehensive Earnings (Loss)
Balance at December 31, 2017	$	(307)	$	(362)	$	13	$	(656)
Other comprehensive earnings (loss) before reclassifications		(197)		33		25		(139)
Amounts reclassified from accumulated other comprehensive earnings (loss) into earnings		—		52		(92)		(40)
Balance at December 31, 2018	$	(504)	$	(277)	$	(54)	$	(835)
Other comprehensive earnings (loss) before reclassifications		119		(223)		67		(37)
Amounts reclassified from accumulated other comprehensive earnings (loss) into earnings		—		18		(22)		(4)
Currency translation recognized in earnings from the sale of the Argentina steel aerosol business		45		—		—		45
Stranded tax effects reclassified into retained earnings		—		(76)		(3)		(79)
Balance at December 31, 2019	$	(340)	$	(558)	$	(12)	$	(910)

Information related to amounts reclassified into net earnings from accumulated other comprehensive earnings (loss)

	Years Ended December 31,
($  in millions)	2019		2018		2017
Gains (losses) on cash flow hedges:
Commodity contracts recorded in net sales	$	18	$	1	$	(7)
Commodity contracts recorded in cost of sales		(45)		54		50
Currency exchange contracts recorded in selling, general and administrative		7		1		(1)
Cross-currency swaps recorded in selling, general and administrative		35		49		(136)
Cross-currency swaps recorded in interest expense		12		14		16
Interest rate contracts recorded in interest expense		1		—		—
Total before tax effect		28		119		(78)
Tax benefit (expense) on amounts reclassified into earnings		(6)		(27)		13
Recognized gain (loss), net of tax	$	22	$	92	$	(65)
Amortization of pension and other postretirement benefits: (a)
Prior service income (expense)	$	(2)	$	(1)	$	(1)
Actuarial gains (losses)		(14)		(32)		(34)
Effect of pension settlements		(8)		(36)		(44)
Total before tax effect		(24)		(69)		(79)
Tax benefit (expense) on amounts reclassified into earnings		6		17		30
Recognized gain (loss), net of tax	$	(18)	$	(52)	$	(49)

(a) These components include the computation of net periodic benefit cost detailed in Note 17.