Acquisitions and Dispositions - Net assets acquired (Details) - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016
Assets and Liabilities Acquired
Goodwill	$ 5,152	$ 5,095
Ball Corporation
Assets and Liabilities Acquired
Goodwill	$ 3
Rexam
Assets and Liabilities Acquired
Cash			$ 450
Receivables, net			775
Inventories, net			792
Other current assets			164
Assets held for sale (sold to Ardagh on June 30, 2016)			913
Total current assets			3,094
Property, plant and equipment			2,296
Goodwill			3,799
Intangible assets			1,888
Restricted cash			174
Other Assets			439
Total assets acquired			11,690
Short-term debt and current portion of long-term debt			2,792
Accounts payable			870
Accrued employee costs			135
Liabilities held for sale			7
Other current liabilities			377
Total current liabilities			4,181
Long term debt			28
Employee benefit obligations			508
Deferred taxes and other liabilities			723
Total liabilities assumed			(5,440)
Net assets acquired			6,250
Noncontrolling interests			(90)
Aggregate value of consideration paid			$ 6,160