Subsidiary Guarantees of Debt - Condensed Consolidating Balance Sheet (Details) - USD ($) $ in Millions	Jun. 30, 2019	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Current assets
Cash and cash equivalents	$ 764			$ 721	$ 549		$ 448
Receivables, net	1,956			1,802
Inventories, net	1,183			1,271
Other current assets	160		$ 139	140
Assets held for sale	470			6
Total current assets	4,533			3,940
Noncurrent assets
Property, plant and equipment, net	4,385			4,542
Goodwill	4,433			4,475
Intangible assets, net	2,104			2,188
Other assets	1,654			1,409
Total assets	17,109			16,554
Current liabilities
Short-term debt and current portion of long-term debt	392			219
Accounts payable	2,739			3,095
Accrued employee costs	256			289
Other current liabilities	565		489	492
Liabilities held for sale	182
Total current liabilities	4,134			4,095
Noncurrent liabilities
Long-term debt	6,916			6,510
Employee benefit obligations	1,465			1,455
Long-term derivative liabilities	32			64
Deferred taxes	606			645
Deferred taxes	189			237
Other liabilities	424		$ 273	287
Total liabilities	13,545			12,992
Common stock	1,172			1,157
Retained earnings	5,651			5,341
Accumulated other comprehensive earnings (loss)	(797)			(835)
Treasury stock, at cost	(2,566)			(2,205)
Total Ball Corporation shareholders' equity	3,460			3,458
Noncontrolling interests	104			104
Total equity	3,564	$ 3,649		3,562	$ 3,995	$ 4,138	$ 4,084
Total liabilities and equity	17,109			16,554
Eliminating Adjustments
Current assets
Intercompany receivables	(2,273)			(2,218)
Total current assets	(2,273)			(2,218)
Noncurrent assets
Investment in subsidiaries	(14,875)			(14,825)
Total assets	(17,148)			(17,043)
Current liabilities
Intercompany payables	(2,870)			(2,825)
Total current liabilities	(2,870)			(2,825)
Noncurrent liabilities
Intercompany long-term notes	597			606
Total liabilities	(2,273)			(2,219)
Common stock	(7,204)			(7,837)
Preferred stock	(5)			(5)
Retained earnings	(8,548)			(8,028)
Accumulated other comprehensive earnings (loss)	882			1,046
Total Ball Corporation shareholders' equity	(14,875)			(14,824)
Total equity	(14,875)			(14,824)
Total liabilities and equity	(17,148)			(17,043)
Ball Corporation | Reportable Legal Entities
Current assets
Cash and cash equivalents	15			4
Receivables, net	23			21
Intercompany receivables	108			66
Other current assets	33			32
Total current assets	179			123
Noncurrent assets
Property, plant and equipment, net	28			24
Investment in subsidiaries	11,627			11,145
Intangible assets, net	18			18
Other assets	266			213
Total assets	12,118			11,523
Current liabilities
Short-term debt and current portion of long-term debt	331			173
Accounts payable	13			50
Intercompany payables	2,290			2,310
Accrued employee costs	41			39
Other current liabilities	163			153
Total current liabilities	2,838			2,725
Noncurrent liabilities
Long-term debt	6,913			6,504
Employee benefit obligations	886			871
Intercompany long-term notes	(1,840)			(1,977)
Deferred taxes	(249)			(172)
Other liabilities	110			114
Total liabilities	8,658			8,065
Common stock	1,172			1,157
Retained earnings	5,651			5,341
Accumulated other comprehensive earnings (loss)	(797)			(835)
Treasury stock, at cost	(2,566)			(2,205)
Total Ball Corporation shareholders' equity	3,460			3,458
Total equity	3,460			3,458
Total liabilities and equity	12,118			11,523
Guarantor Subsidiaries
Current assets
Receivables, net	663			613
Intercompany receivables	475			495
Inventories, net	471			527
Other current assets	29			31
Assets held for sale	4			4
Total current assets	1,642			1,670
Noncurrent assets
Property, plant and equipment, net	1,399			1,378
Investment in subsidiaries	3,348			3,779
Goodwill	1,191			1,191
Intangible assets, net	392			409
Other assets	292			215
Total assets	8,264			8,642
Current liabilities
Accounts payable	980			1,178
Intercompany payables	92			49
Accrued employee costs	121			144
Other current liabilities	139			119
Total current liabilities	1,332			1,490
Noncurrent liabilities
Employee benefit obligations	294			286
Intercompany long-term notes	(746)			3
Deferred taxes	246			169
Other liabilities	119			45
Total liabilities	1,245			1,993
Common stock	2,523			2,523
Retained earnings	5,010			4,712
Accumulated other comprehensive earnings (loss)	(514)			(586)
Total Ball Corporation shareholders' equity	7,019			6,649
Total equity	7,019			6,649
Total liabilities and equity	8,264			8,642
Non-Guarantor Subsidiaries
Current assets
Cash and cash equivalents	749			717
Receivables, net	1,270			1,168
Intercompany receivables	1,690			1,657
Inventories, net	712			744
Other current assets	98			77
Assets held for sale	466			2
Total current assets	4,985			4,365
Noncurrent assets
Property, plant and equipment, net	2,958			3,140
Investment in subsidiaries	(100)			(99)
Goodwill	3,242			3,284
Intangible assets, net	1,694			1,761
Other assets	1,096			981
Total assets	13,875			13,432
Current liabilities
Short-term debt and current portion of long-term debt	61			46
Accounts payable	1,746			1,867
Intercompany payables	488			466
Accrued employee costs	94			106
Other current liabilities	263			220
Liabilities held for sale	182
Total current liabilities	2,834			2,705
Noncurrent liabilities
Long-term debt	3			6
Employee benefit obligations	285			298
Intercompany long-term notes	1,989			1,368
Deferred taxes	609			648
Other liabilities	195			128
Total liabilities	5,915			5,153
Common stock	4,681			5,314
Preferred stock	5			5
Retained earnings	3,538			3,316
Accumulated other comprehensive earnings (loss)	(368)			(460)
Total Ball Corporation shareholders' equity	7,856			8,175
Noncontrolling interests	104			104
Total equity	7,960			8,279
Total liabilities and equity	$ 13,875			$ 13,432