STOCKHOLDERS’ EQUITY

The following table summarizes the changes in stockholders’ equity (in millions):



	Gilead Stockholders’ Equity													Noncontrolling Interest		Total Stockholders’ Equity
	Common Stock				Additional Paid-In Capital			Accumulated Other Comprehensive Income (Loss)			Retained Earnings
	Shares		Amount		Additional Paid-In Capital			Accumulated Other Comprehensive Income (Loss)			Retained Earnings
Balance at December 31, 2017	1,308		$	1	$	1,264		$	165		$	19,012		$	59	$	20,501
Net income	—		—		—			—			3,355			3		3,358
Other comprehensive income, net of tax	—		—		—			130			—			—		130
Issuances under employee stock purchase plan	1		—		48			—			—			—		48
Issuances under equity incentive plans	8		—		109			—			—			—		109
Stock-based compensation	—		—		477			—			—			—		477
Repurchases of common stock	(21	)	—		(54		)	—			(1,526		)	—		(1,580		)
Dividends declared	—		—		—			—			(1,499		)	—		(1,499		)
Cumulative effect from the adoption of new accounting standards	—		—		—			(293		)	483			—		190
Balance at June 30, 2018	1,296		$	1	$	1,844		$	2		$	19,825		$	62	$	21,734

Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes in AOCI by component, net of tax (in millions):



	Foreign Currency Translation			Unrealized Gains and Losses on Available-for-Sale Securities			Unrealized Gains and Losses on Cash Flow Hedges			Total
Balance at December 31, 2017	$	85		$	194		$	(114	)	$	165
Reclassifications to retained earnings as a result of the adoption of new accounting standards	—			(293		)	—			(293		)
Balance at January 1, 2018	85			(99		)	(114		)	(128		)
Net unrealized gain (loss)	(18		)	(6		)	57			33
Reclassifications to net income	—			4			93			97
Net current period other comprehensive income (loss)	(18		)	(2		)	150			130
Balance at June 30, 2018	$	67		$	(101	)	$	36		$	2

The amounts reclassified to net income for gains and losses on cash flow hedges are recorded as part of Product sales on our Condensed Consolidated Statements of Income. See Note 5, Derivative Financial Instruments for additional information. The amounts reclassified to net income for gains and losses on available-for-sale debt securities are recorded as part of Other income (expense), net, on our Condensed Consolidated Statements of Income.

Stock Repurchase Program

In the first quarter of 2016, our Board of Directors authorized a $12.0 billion stock repurchase program (2016 Program) under which repurchases may be made in the open market or in privately negotiated transactions. We started repurchases under the 2016 Program in April 2016.

During the three and six months ended June 30, 2018, we repurchased and retired 7 million and 20 million shares of our common stock for $450 million and $1.5 billion, respectively, through open market transactions under the 2016 Program. As of June 30, 2018, the remaining authorized repurchase amount under the 2016 Program was $6.6 billion.