Consolidated Statements of Cash Flows - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash Flows from Operating Activities:
Net income		$ 3,695,000	$ 1,339,000	$ 2,472,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation		1,131,000	1,130,000	1,167,000
Amortization of purchased intangibles		64,000	54,000	33,000
Restructuring, impairment and other charges		77,000	0	71,000
Stock compensation charges		42,000	46,000	58,000
Equity in earnings of affiliated companies		(284,000)	(299,000)	(266,000)
Dividends received from affiliated companies		85,000	143,000	1,704,000
Deferred tax (benefit) provision		(308,000)	54,000	612,000
Restructuring payments		(12,000)	(40,000)	(39,000)
Customer deposits		185,000	197,000
Employee benefit payments in excess of expense		(92,000)	(52,000)	(52,000)
Translated earnings contract loss (gain)		448,000	(80,000)	(1,369,000)
Unrealized translation losses on transactions		1,000	268,000	431,000
Contingent consideration fair value adjustment		(43,000)	(13,000)	(249,000)
Gain on realignment of equity investment		(2,676,000)
Changes in certain working capital items:
Trade accounts receivable		(106,000)	162,000	(16,000)
Inventories		(68,000)	(77,000)	2,000
Other current assets		18,000	(57,000)	(16,000)
Accounts payable and other current liabilities		243,000	(146,000)	(3,000)
Other, net		121,000	180,000	169,000
Net cash provided by operating activities		2,521,000	2,809,000	4,709,000
Cash Flows from Investing Activities:
Capital expenditures		(1,130,000)	(1,250,000)	(1,076,000)
Acquisitions of businesses, net of cash (paid) received		(333,000)	(732,000)	66,000
Proceeds from sale of a business			12,000
Investment in unconsolidated entities		(24,000)	(33,000)	(109,000)
Cash received on realignment of equity investment		4,818,000	0
Proceeds from sale of assets to related party		42,000
(Payments) repayments of loans to unconsolidated entities		(23,000)	6,000	23,000
Short-term investments – acquisitions		(20,000)	(969,000)	(1,398,000)
Short-term investments – liquidations		121,000	1,629,000	1,167,000
Realized gains on translated earnings contracts		201,000	653,000	361,000
Other, net		10,000	(1,000)	4,000
Net cash provided by (used in) investing activities		3,662,000	(685,000)	(962,000)
Cash Flows from Financing Activities:
Net repayments of short-term borrowings and current portion of long-term debt		(85,000)	(12,000)	(52,000)
Proceeds from issuance of long-term debt		0	745,000
Proceeds from issuance of short-term debt, net		0	3,000	29,000
(Payments) proceeds from issuance of commercial paper		(481,000)	481,000
Payments from the settlement of interest rate swap agreements			(10,000)
Principal payments under capital lease obligations		(7,000)	(6,000)	(6,000)
Proceeds from issuance of preferred stock (1)	[1]			400,000
Proceeds received for asset financing and related incentives, net		1,000	1,000	1,000
Proceeds from the exercise of stock options		138,000	102,000	116,000
Repurchases of common stock for treasury		(4,227,000)	(3,228,000)	(2,483,000)
Dividends paid		(645,000)	(679,000)	(591,000)
Net cash used in financing activities		(5,306,000)	(2,603,000)	(2,586,000)
Effect of exchange rates on cash		(86,000)	(330,000)	(556,000)
Net increase (decrease) in cash and cash equivalents		791,000	(809,000)	605,000
Cash and cash equivalents at beginning of year		4,500,000	5,309,000	4,704,000
Cash and cash equivalents at end of year		$ 5,291,000	$ 4,500,000	$ 5,309,000

[1] In the first quarter of 2014, Corning issued 1,900 shares of Preferred Stock to Samsung Display Co., Ltd. in connection with the acquisition of their equity interests in Samsung Corning Precision Materials Co., Ltd. (Note 8). Corning also issued to Samsung Display an additional 400 shares of Preferred Stock at closing, for an issue price of $400 million in cash (Note 17).