Property, Plant and Equipment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Property, plant and equipment
Property, plant and equipment, gross	$ 7,174		$ 7,174		$ 6,632
Accumulated depreciation	(2,649)		(2,649)		(2,245)
Net property, plant and equipment	4,525		4,525		4,387
Depreciation expense	113	$ 105	373	$ 237
Land
Property, plant and equipment
Property, plant and equipment, gross	173		173		105
Buildings
Property, plant and equipment
Property, plant and equipment, gross	1,377		1,377		1,301
Machinery and equipment
Property, plant and equipment
Property, plant and equipment, gross	5,075		5,075		4,723
Construction-in-progress
Property, plant and equipment
Property, plant and equipment, gross	$ 549		549		$ 503
Rexam
Property, plant and equipment
Depreciation for changes in values and useful lives of fixed assets and business combination valuation			$ 19