Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Cash Flows [Abstract]
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF PERIOD	$ 21,856	$ 19,934	$ 16,175
OPERATING ACTIVITIES:
Net income	10,073	3,033	2,371
Adjustments to reconcile net income to net cash from operating activities:
Depreciation of property and equipment and other amortization, including capitalized content costs	15,341	11,478	8,116
Stock-based compensation	5,418	4,215	2,975
Other operating expense, net	274	202	160
Other expense (income), net	219	(292)	(20)
Deferred income taxes	441	(29)	(246)
Changes in operating assets and liabilities:
Inventories	(1,314)	(3,583)	(1,426)
Accounts receivable, net and other	(4,615)	(4,780)	(3,436)
Accounts payable	3,263	7,100	5,030
Accrued expenses and other	472	283	1,724
Unearned revenue	1,151	738	1,955
Net cash provided by (used in) operating activities	30,723	18,365	17,203
INVESTING ACTIVITIES:
Purchases of property and equipment	(13,427)	(11,955)	(7,804)
Proceeds from property and equipment incentives	2,104	1,897	1,067
Acquisitions, net of cash acquired, and other	(2,186)	(13,972)	(116)
Sales and maturities of marketable securities	8,240	9,677	4,577
Purchases of marketable securities	(7,100)	(12,731)	(7,240)
Net cash provided by (used in) investing activities	(12,369)	(27,084)	(9,516)
FINANCING ACTIVITIES:
Proceeds from long-term debt and other	768	16,228	618
Repayments of long-term debt and other	(668)	(1,301)	(327)
Principal repayments of capital lease obligations	(7,449)	(4,799)	(3,860)
Principal repayments of finance lease obligations	(337)	(200)	(147)
Net cash provided by (used in) financing activities	(7,686)	9,928	(3,716)
Foreign currency effect on cash, cash equivalents, and restricted cash	(351)	713	(212)
Net increase (decrease) in cash, cash equivalents, and restricted cash	10,317	1,922	3,759
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD	32,173	21,856	19,934
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest on long-term debt	854	328	290
Cash paid for interest on capital and finance lease obligations	575	319	206
Cash paid for income taxes, net of refunds	1,184	957	412
Property and equipment acquired under capital leases	10,615	9,637	5,704
Property and equipment acquired under build-to-suit leases	$ 3,641	$ 3,541	$ 1,209