Intangibles Assets, net (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Total annual intangible asset amortization expense
Finite-lived intangible assets (net of accumulated amortization)	$ 81			$ 81		$ 89
Accumulated amortization	160			160		143
Capitalized software (net of accumulated amortization)	82			82		79
Accumulated amortization - capitalized software	116			116		87
Total intangible assets, net	2,490			2,490		1,934
Amortization of Intangible Assets	49	$ 42		166	$ 62
Rexam
Total annual intangible asset amortization expense
Finite-lived intangible assets (net of accumulated amortization)	2,327			2,327		1,766
Accumulated amortization	203			203		$ 62
Amortization of Intangible Assets	$ 37	$ 33		$ 120	$ 33
Amortization recorded as a result of changes to the initial accounting of intangible assets in business combination			$ 15