Segments - Segment Disaggregation of Sales (Details) - USD ($) $ in Millions	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Net sales	$ 3,097	$ 3,141
Flexibles
Disaggregation of Revenue [Line Items]
Net sales	2,399	2,430
Rigid Packaging
Disaggregation of Revenue [Line Items]
Net sales	698	711
North America
Disaggregation of Revenue [Line Items]
Net sales	1,486	1,493
North America | Flexibles
Disaggregation of Revenue [Line Items]
Net sales	900	908
North America | Rigid Packaging
Disaggregation of Revenue [Line Items]
Net sales	587	585
Latin America
Disaggregation of Revenue [Line Items]
Net sales	338	389
Latin America | Flexibles
Disaggregation of Revenue [Line Items]
Net sales	227	263
Latin America | Rigid Packaging
Disaggregation of Revenue [Line Items]
Net sales	111	126
Europe
Disaggregation of Revenue [Line Items]
Net sales	894	886
Europe | Flexibles
Disaggregation of Revenue [Line Items]
Net sales	894	886
Europe | Rigid Packaging
Disaggregation of Revenue [Line Items]
Net sales	0	0
Asia Pacific
Disaggregation of Revenue [Line Items]
Net sales	378	374
Asia Pacific | Flexibles
Disaggregation of Revenue [Line Items]
Net sales	378	374
Asia Pacific | Rigid Packaging
Disaggregation of Revenue [Line Items]
Net sales	$ 0	$ 0