CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating activities
Net income	$ 19,478	$ 16,348	$ 14,136
Adjustments:
Depreciation and impairment of property and equipment	5,267	4,132	3,523
Amortization and impairment of intangible assets	877	931	1,456
Stock-based compensation expense	6,703	5,203	4,279
Deferred income taxes	(38)	(179)	(104)
Gain on divestiture of business	0	0	(740)
(Gain) loss on marketable and non-marketable investments, net	275	334	(390)
Other	174	212	192
Changes in assets and liabilities, net of effects of acquisitions:
Accounts receivable	(2,578)	(2,094)	(1,641)
Income taxes, net	3,125	(179)	591
Prepaid revenue share, expenses and other assets	312	(318)	459
Accounts payable	110	203	436
Accrued expenses and other liabilities	1,515	1,597	757
Accrued revenue share	593	339	245
Deferred revenue	223	43	(175)
Net cash provided by operating activities	36,036	26,572	23,024
Investing activities
Purchases of property and equipment	(10,212)	(9,950)	(11,014)
Proceeds from disposals of property and equipment	240	35	55
Purchases of marketable securities	(84,509)	(74,368)	(56,310)
Maturities and sales of marketable securities	66,895	62,905	51,315
Purchases of non-marketable investments	(1,109)	(2,326)	(1,440)
Maturities and sales of non-marketable investments	494	154	213
Cash collateral related to securities lending	(2,428)	(350)	1,403
Investments in reverse repurchase agreements	450	425	(775)
Proceeds from divestiture of business	0	0	386
Acquisitions, net of cash acquired, and purchases of intangible assets	(986)	(236)	(4,888)
Net cash used in investing activities	(31,165)	(23,711)	(21,055)
Financing activities
Net payments related to stock-based award activities	(3,304)	(2,375)	(2,069)
Adjustment Payment to Class C capital stockholders	0	(47)	0
Repurchases of capital stock	(3,693)	(1,780)	0
Proceeds from issuance of debt, net of costs	8,729	13,705	11,625
Repayments of debt	(10,064)	(13,728)	(11,643)
Net cash used in financing activities	(8,332)	(4,225)	(2,087)
Effect of exchange rate changes on cash and cash equivalents	(170)	(434)	(433)
Net decrease in cash and cash equivalents	(3,631)	(1,798)	(551)
Cash and cash equivalents at beginning of period	16,549	18,347	18,898
Cash and cash equivalents at end of period	12,918	16,549	18,347
Supplemental disclosures of cash flow information
Cash paid for taxes, net of refunds	1,643	3,651	3,138
Cash paid for interest	$ 84	$ 96	$ 86