Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Statement of Cash Flows [Abstract]
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, BEGINNING OF PERIOD	$ 82,312	$ 73,890	$ 73,332	$ 49,734
OPERATING ACTIVITIES:
Net income	17,127	10,431	65,944	37,684
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization of property and equipment and capitalized content costs, operating lease assets, and other	14,262	11,684	55,373	49,224
Stock-based compensation	3,689	4,961	20,739	24,236
Non-operating expense (income), net	(2,817)	2,734	(3,539)	1,452
Deferred income taxes	507	(938)	(3,203)	(6,342)
Changes in operating assets and liabilities:
Inventories	(1,222)	1,776	(4,882)	2,854
Accounts receivable, net and other	1,247	3,684	(5,686)	(9,388)
Other assets	(3,402)	(2,701)	(15,184)	(11,763)
Accounts payable	(9,043)	(11,282)	5,211	5,455
Accrued expenses and other	(4,061)	(2,928)	(4,037)	407
Unearned revenue	728	1,568	3,167	5,328
Net cash provided by (used in) operating activities	17,015	18,989	113,903	99,147
INVESTING ACTIVITIES:
Purchases of property and equipment	(25,019)	(14,925)	(93,093)	(53,447)
Proceeds from property and equipment sales and incentives	764	990	5,115	4,449
Acquisitions, net of cash acquired, non-marketable investments, and other, net	48	(3,354)	(3,680)	(5,680)
Sales and maturities of marketable securities	7,737	1,392	22,748	5,904
Purchases of marketable securities	(13,333)	(1,965)	(37,373)	(3,115)
Net cash provided by (used in) investing activities	(29,803)	(17,862)	(106,283)	(51,889)
FINANCING ACTIVITIES:
Proceeds from short-term debt, and other	1,815	338	6,619	5,687
Repayments of short-term debt, and other	(2,082)	(404)	(6,738)	(22,478)
Proceeds from long-term debt	746	0	746	0
Repayments of long-term debt	0	(330)	(8,852)	(2,620)
Principal repayments of finance leases	(410)	(770)	(1,683)	(3,774)
Principal repayments of financing obligations	(116)	(90)	(695)	(304)
Net cash provided by (used in) financing activities	(47)	(1,256)	(10,603)	(23,489)
Foreign currency effect on cash, cash equivalents, and restricted cash	416	(429)	(456)	(171)
Net increase (decrease) in cash, cash equivalents, and restricted cash	(12,419)	(558)	(3,439)	23,598
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH, END OF PERIOD	$ 69,893	$ 73,332	$ 69,893	$ 73,332