Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Cash Flows from Operating Activities
Net income (loss)	$ 862	$ (775)	$ (1,063)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation, amortization and impairment	2,322	2,154	1,901
Stock-based compensation	1,734	898	749
Amortization of debt discounts and issuance costs	180	188	159
Inventory and purchase commitments write-downs	202	193	85
Loss on disposals of fixed assets	117	146	162
Foreign currency transaction net loss (gain)	114	(48)	(2)
Non-cash interest and other operating activities	228	186	49
Operating cash flow related to repayment of discounted convertible senior notes		(188)
Changes in operating assets and liabilities, net of effect of business combinations:
Accounts receivable	(652)	(367)	(497)
Inventory	(422)	(429)	(1,023)
Operating lease vehicles	(1,072)	(764)	(215)
Prepaid expenses and other current assets	(251)	(288)	(82)
Other non-current assets	(344)	115	(207)
Accounts payable and accrued liabilities	2,102	646	1,797
Deferred revenue	321	801	406
Customer deposits	7	(58)	(96)
Other long-term liabilities	495	(5)	(25)
Net cash provided by operating activities	5,943	2,405	2,098
Cash Flows from Investing Activities
Purchases of property and equipment excluding finance leases, net of sales	(3,157)	(1,327)	(2,101)
Purchases of solar energy systems, net of sales	(75)	(105)	(218)
Receipt of government grants	123	46
Purchase of intangible assets	(10)	(5)
Business combinations, net of cash acquired	(13)	(45)	(18)
Net cash used in investing activities	(3,132)	(1,436)	(2,337)
Cash Flows from Financing Activities
Proceeds from issuances of common stock in public offerings, net of issuance costs	12,269	848
Proceeds from issuances of convertible and other debt	9,713	10,669	6,176
Repayments of convertible and other debt	(11,623)	(9,161)	(5,247)
Repayments of borrowings issued to related parties			(100)
Collateralized lease repayments	(240)	(389)	(559)
Proceeds from exercises of stock options and other stock issuances	417	263	296
Principal payments on finance leases	(338)	(321)	(181)
Debt issuance costs	(6)	(37)	(15)
Purchase of convertible note hedges		(476)
Proceeds from issuance of warrants		174
Proceeds from investments by noncontrolling interests in subsidiaries	24	279	437
Distributions paid to noncontrolling interests in subsidiaries	(208)	(311)	(227)
Payments for buy-outs of noncontrolling interests in subsidiaries	(35)	(9)	(6)
Net cash provided by financing activities	9,973	1,529	574
Effect of exchange rate changes on cash and cash equivalents and restricted cash	334	8	(23)
Net increase in cash and cash equivalents and restricted cash	13,118	2,506	312
Cash and cash equivalents and restricted cash, beginning of period	6,783	4,277	3,965
Cash and cash equivalents and restricted cash, end of period	19,901	6,783	4,277
Supplemental Non-Cash Investing and Financing Activities
Equity issued in connection with business combination		207
Acquisitions of property and equipment included in liabilities	1,088	562	249
Estimated fair value of facilities under build-to-suit leases			94
Supplemental Disclosures
Cash paid during the period for interest, net of amounts capitalized	444	455	381
Cash paid during the period for taxes, net of refunds	$ 115	$ 54	$ 35