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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net loss | $ (275,000,000) | $ (1,353,000,000) | $ (662,000,000)
Adjustments to reconcile net loss to cash, cash equivalents, and restricted cash provided by (used in) operating activities: |  |  |
Depreciation and amortization | 65,000,000 | 83,000,000 | 47,000,000
Amortization of right of use asset | 7,000,000 | 7,000,000 | 8,000,000
Stock-based compensation | 126,000,000 | 171,000,000 | 536,000,000
Warrant fair value adjustment | 0 | 0 | (12,000,000)
Inventory valuation adjustment | 65,000,000 | 737,000,000 | 56,000,000
Goodwill impairment | 0 | 60,000,000 | 0
Changes in fair value of equity securities | 1,000,000 | 35,000,000 | (35,000,000)
Other | 13,000,000 | (1,000,000) | (9,000,000)
Origination of mortgage loans held for sale | 0 | (118,000,000) | (196,000,000)
Proceeds from sale and principal collections of mortgage loans held for sale | 1,000,000 | 128,000,000 | 197,000,000
(Gain) loss on early extinguishment of debt | (216,000,000) | 25,000,000 | 0
Changes in operating assets and liabilities: |  |  |
Escrow receivable | 21,000,000 | 54,000,000 | (83,000,000)
Real estate inventory | 2,613,000,000 | 896,000,000 | (5,656,000,000)
Other assets | (19,000,000) | 37,000,000 | (52,000,000)
Accounts payable and other accrued liabilities | (38,000,000) | (25,000,000) | 76,000,000
Interest payable | (10,000,000) | 2,000,000 | 4,000,000
Lease liabilities | (10,000,000) | (8,000,000) | (13,000,000)
Net cash provided by (used in) operating activities | 2,344,000,000 | 730,000,000 | (5,794,000,000)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchase of property and equipment | (37,000,000) | (37,000,000) | (33,000,000)
Purchase of intangible assets | 0 | 0 | (1,000,000)
Purchase of marketable securities | 0 | (28,000,000) | (486,000,000)
Proceeds from sales, maturities, redemptions and paydowns of marketable securities | 80,000,000 | 328,000,000 | 92,000,000
Purchase of non-marketable equity securities | 0 | (25,000,000) | (15,000,000)
Proceeds from sale of non-marketable equity securities | 1,000,000 | 3,000,000 | 0
Capital returns from non-marketable equity securities | 0 | 3,000,000 | 0
Acquisitions, net of cash acquired | 0 | (10,000,000) | (33,000,000)
Net cash provided by (used in) investing activities | 44,000,000 | 234,000,000 | (476,000,000)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Proceeds from issuance of convertible senior notes, net of issuance costs | 0 | 0 | 953,000,000
Repurchase of convertible senior notes | (362,000,000) | 0 | 0
Purchase of capped calls related to the convertible senior notes | 0 | 0 | (119,000,000)
Proceeds from exercise of stock options | 3,000,000 | 4,000,000 | 15,000,000
Proceeds from issuance of common stock for ESPP | 2,000,000 | 2,000,000 | 0
Proceeds from warrant exercise | 0 | 0 | 22,000,000
Proceeds from the February 2021 Offering | 0 | 0 | 886,000,000
Proceeds from non-recourse asset-backed debt | 238,000,000 | 10,108,000,000 | 11,499,000,000
Principal payments on non-recourse asset-backed debt | (2,515,000,000) | (11,822,000,000) | (5,838,000,000)
Proceeds from other secured borrowings | 0 | 114,000,000 | 192,000,000
Principal payments on other secured borrowings | 0 | (121,000,000) | (192,000,000)
Payment of loan origination fees and debt issuance costs | (1,000,000) | (26,000,000) | (47,000,000)
Payment for early extinguishment of debt | (4,000,000) | (10,000,000) | 0
Net cash (used in) provided by financing activities | (2,639,000,000) | (1,751,000,000) | 7,342,000,000
NET (DECREASE) INCREASE IN CASH, CASH EQUIVALENTS, AND RESTRICTED CASH | (251,000,000) | (787,000,000) | 1,072,000,000
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH – Beginning of year | 1,791,000,000 | 2,578,000,000 | 1,506,000,000
CASH, CASH EQUIVALENTS, AND RESTRICTED CASH – End of year | 1,540,000,000 | 1,791,000,000 | 2,578,000,000
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION – Cash paid during the period for interest | 203,000,000 | 355,000,000 | 122,000,000
DISCLOSURES OF NONCASH FINANCING ACTIVITIES: |  |  |
Stock-based compensation expense capitalized for internally developed software | 23,000,000 | 16,000,000 | 12,000,000
Issuance of common stock in extinguishment of warrant liabilities | 0 | 0 | (35,000,000)
RECONCILIATION TO CONSOLIDATED BALANCE SHEETS: |  |  |
Cash and cash equivalents | 999,000,000 | 1,137,000,000 | 1,731,000,000
Restricted cash | 541,000,000 | 654,000,000 | 847,000,000
Cash, cash equivalents, and restricted cash | 1,540,000,000 | 1,791,000,000 | 2,578,000,000
Common Stock |  |  |
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Issuance cost of common stock | $ 0 | $ 0 | $ (29,000,000)

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- Definition The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-15 + Details
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- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-8 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (a) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-28 + Details
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- Definition The fair value of stock issued in noncash financing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-4 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-3 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482913/230-10-50-5 + Details
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