Acquisitions and Dispositions Discontinued Operations (Details) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Mar. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)
Separation And Merger Transaction [Line Items]
Gain (Loss) on Sale of Equity Investments									$ 40	$ 0	$ 0
Net sales	$ 3,497	$ 3,789	$ 3,921	$ 3,544	$ 3,552	$ 3,725	$ 3,958	$ 3,531	14,751	14,766	14,791
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax								1,468
Income from discontinued operations, net of tax									313	68	1,050
Less: net income attributable to noncontrolling interests									22	21	57
Proceeds from separation of business								1,735	1,100
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax								946
Income tax expense									241	424	237
Net Income (Loss) Attributable to Parent	344	$ (184)	$ 370	$ 347	314	$ 433	$ 337	$ 322	877	1,406	2,102
Assets Held-for-sale, Not Part of Disposal Group, Current	30				285				30	285
Long-term debt	4,299				4,265				4,299	4,265
Liabilities Held-for-sale, Current	0				112				0	112
European Fiber Glass
Separation And Merger Transaction [Line Items]
Gain (Loss) on disposals									(42)
Flat Glass Business [Member]
Separation And Merger Transaction [Line Items]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net					79					79
Net sales									427	564	569
Results of Operations, Income before Income Taxes									70	99	70
Proceeds from separation of business	$ 740
Gain (Loss) on disposals									421	0	0
Income tax expense									178	32	22
Net Income (Loss) Attributable to Parent									313	67	$ 48
Disposal Group, Including Discontinued Operation, Inventory					47					47
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment					196					196
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities					(37)					(37)
Assets Held-for-sale, Not Part of Disposal Group, Current					285					285
Disposal Group, Including Discontinued Operation, Liabilities, Current					1					1
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities					72					72
Long-term debt					16					16
Disposal Group, Including Discontinued Operation, Pension Plan Benefit Obligation					16					16
Disposal Group, Including Discontinued Operation, Postretirement Plan Benefit Obligation					6					6
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent					1					1
Liabilities Held-for-sale, Current					$ 112					$ 112
Number Of Employees Impacted	1,200
Fiber Glass Asian Joint Ventures [Member]
Separation And Merger Transaction [Line Items]
Gain (Loss) on Sale of Equity Investments									$ (36)