Schedule II: Valuation and Qualifying Accounts

12 Months Ended

Dec. 31, 2018

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

Valuation and Qualifying Accounts

GILEAD SCIENCES, INC.

Schedule II: Valuation and Qualifying Accounts

(in millions)

	Balance at Beginning of Period		Additions/Charged to Expense			Deductions		Balance at End of Period
Year ended December 31, 2018:
Accounts receivable allowances(1)	$	455	$	7,572		$	7,444	$	583
Sales return allowance	$	162	$	85		$	88	$	159
Valuation allowances for deferred tax assets	$	162	$	170		$	1	$	331
Year ended December 31, 2017:
Accounts receivable allowances(1)	$	763	$	7,682		$	7,990	$	455
Sales return allowance	$	195	$	23		$	56	$	162
Valuation allowances for deferred tax assets	$	126	$	72		$	36	$	162
Year ended December 31, 2016:
Accounts receivable allowances(1)	$	1,032	$	9,287		$	9,556	$	763
Sales return allowance	$	371	$	(141	)	$	35	$	195
Valuation allowances for deferred tax assets	$	6	$	120		$	—	$	126
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Notes:
(1)	Allowances are for doubtful accounts, cash discounts and chargebacks.