Consolidated Statements of Cash Flows (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013	Dec. 31, 2012
Cash Flows from Operating Activities:
Net income	$ 2,472		$ 1,961	$ 1,636
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	1,167		971	978
Amortization of purchased intangibles	33		31	19
Restructuring, impairment and other charges	71		67	133
Loss on retirement of debt				26
Stock compensation charges	58		54	70
Equity in earnings of affiliated companies	(266)		(547)	(810)
Dividends received from affiliated companies	1,704		630	1,090
Deferred tax provision	612		189	18
Restructuring payments	(39)		(35)	(15)
Employee benefit payments (in excess of) less than expense	(52)		52	178
Gains on translated earnings contracts	(1,369)		(435)
Unrealized translation losses on transactions	431		96	241
Contingent consideration fair value adjustment	(249)
Changes in certain working capital items:
Trade accounts receivable	(16)		(29)	(272)
Inventories	2		(247)	(23)
Other current assets	(16)		34	(81)
Accounts payable and other current liabilities	(3)		(23)	189
Other, net	169		18	(171)
Net cash provided by operating activities	4,709		2,787	3,206
Cash Flows from Investing Activities:
Capital expenditures	(1,076)		(1,019)	(1,801)
Acquisitions of businesses, net of cash received	66		(68)	(723)
Investment in unconsolidated entities	(109)		(526)	(111)
Proceeds from loan repayments from unconsolidated entities	23		8
Short-term investments – acquisitions	(1,398)		(1,406)	(2,270)
Short-term investments – liquidations	1,167		2,026	2,269
Premium on purchased collars			(107)
Realized gains on translated earnings contracts	361		87
Other, net	4		1	8
Net cash used in investing activities	(962)		(1,004)	(2,628)
Cash Flows from Financing Activities:
Retirement of long-term debt, net			(498)	(280)
Net repayments of short-term borrowings and current portion of long-term debt	(52)		(71)	(26)
Proceeds from issuance of long-term debt, net			248	1,362
Proceeds from issuance of short-term debt, net	29
Proceeds (payments) from the settlement of interest rate swap agreements			33	(18)
Principal payments under capital lease obligations	(6)		(7)	(1)
Proceeds from issuance of preferred stock (1)	400	[1]
Proceeds received for asset financing and related incentives, net	1		276
Payments to acquire noncontrolling interest			(47)
Proceeds from the exercise of stock options	116		85	38
Repurchases of common stock for treasury	(2,483)		(1,516)	(720)
Dividends paid	(591)		(566)	(472)
Other, net				2
Net cash used in financing activities	(2,586)		(2,063)	(115)
Effect of exchange rates on cash	(556)		(4)	(136)
Net increase (decrease) in cash and cash equivalents	605		(284)	327
Cash and cash equivalents at beginning of year	4,704		4,988	4,661
Cash and cash equivalents at end of year	$ 5,309		$ 4,704	$ 4,988

[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).