Note 10 - Goodwill and Other Intangible Assets (Details) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2015 USD ($)	Mar. 31, 2015	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)		Dec. 31, 2013 USD ($)
Note 10 - Goodwill and Other Intangible Assets (Details) [Line Items]
Goodwill, Purchase Accounting Adjustments			$ (7)	$ 60	[1]
Number of Businesses Acquired	1	4	5
Goodwill, Gross	$ 7,900		$ 7,900	7,600
Finite-Lived Intangible Assets, Period Increase (Decrease)			209
Finite-lived Intangible Assets Acquired			288
Amortization of Intangible Assets			54	33		$ 31
Finite-Lived Intangible Assets, Translation Adjustments			25
Finite-Lived Intangible Assets, Amortization Expense, Year Three	61		61
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months	61		61
Finite-Lived Intangible Assets, Amortization Expense, Year Two	61		61
Finite-Lived Intangible Assets, Amortization Expense, Year Four	60		60
Finite-Lived Intangible Assets, Amortization Expense, Year Five	55		55
Other Segments [Member]
Note 10 - Goodwill and Other Intangible Assets (Details) [Line Items]
Goodwill, Impairment Loss	29
Optical Communications [Member]
Note 10 - Goodwill and Other Intangible Assets (Details) [Line Items]
Goodwill, Purchase Accounting Adjustments			(7)
Goodwill, Impaired, Accumulated Impairment Loss	$ 6,500		$ 6,500	6,500
Samsung Corning Precision Materials Co., Ltd. [Member]
Note 10 - Goodwill and Other Intangible Assets (Details) [Line Items]
Goodwill, Purchase Accounting Adjustments				$ 60

[1] In the year ended December 31, 2014, the Company recorded measurement period adjustments of $60 million for the Acquisition of Samsung Corning Precision Materials primarily related to the accrual of contingent liabilities and employee benefit obligations.