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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Millions | 6 Months Ended
--- | ---
Jun. 30, 2021 | Jun. 30, 2020
Cash flows from operating activities |  |
Net income (loss) | $ 383.3 | $ (1,643.2)
Adjustments to reconcile net income (loss) to net cash provided by operating activities: |  |
Amortization in interest expense | 5.3 | 5.6
Compensation on equity grants | 29.9 | 33.1
Depreciation and amortization expense | 428.0 | 443.6
Impairment of long-lived assets |  | 2,442.8
Accretion of asset retirement obligations | 2.0 | 1.7
Deferred income tax expense (benefit) | 20.3 | (301.7)
Equity (earnings) loss of unconsolidated affiliates | (24.6) | (35.5)
Distributions of earnings received from unconsolidated affiliates | 42.2 | 44.5
Risk management activities | 68.2 | (125.9)
(Gain) loss on sale or disposition of business and assets | (0.2) |
Write-downs of assets | 4.7 |
(Gain) loss from financing activities | 16.6 | (61.1)
Changes in operating assets and liabilities: |  |
Receivables and other assets | 31.1 | 241.3
Inventories | 126.2 | (56.7)
Accounts payable, accrued liabilities and other liabilities | 166.1 | (268.8)
Interest payable | 4.5 | 19.2
Net cash provided by operating activities | 1,303.6 | 738.9
Cash flows from investing activities |  |
Outlays for property, plant and equipment | (198.9) | (615.9)
Proceeds from sale of business and assets | 0.7 | 134.8
Investments in unconsolidated affiliates | (0.4) | (1.4)
Return of capital from unconsolidated affiliates | 11.7 | 6.9
Other, net | 1.0 | 3.5
Net cash used in investing activities | (185.9) | (472.1)
Debt obligations: |  |
Proceeds from borrowings under credit facilities | 480.0 | 1,240.0
Repayments of credit facilities | (1,145.0) | (800.0)
Proceeds from borrowings under accounts receivable securitization facility | 530.0 | 226.4
Repayments of accounts receivable securitization facility | (520.0) | (346.4)
Proceeds from issuance of senior notes | 1,000.0 |
Redemption of senior notes | (1,132.0) | (239.8)
Principal payments of finance leases | (6.2) | (6.2)
Costs incurred in connection with financing arrangements | (9.6) | (0.5)
Repurchase of shares and units under compensation plans | (8.6) | (3.4)
Contributions from noncontrolling interests | 4.1 | 25.7
Distributions to noncontrolling interests | (251.5) | (206.2)
Distributions to Partnership unitholders |  | (5.6)
Dividends paid to common and Series A Preferred shareholders | (92.7) | (285.7)
Net cash provided by (used in) financing activities | (1,151.5) | (401.7)
Net change in cash and cash equivalents | (33.8) | (134.9)
Cash and cash equivalents, beginning of period | 242.8 | 331.1
Cash and cash equivalents, end of period | $ 209.0 | $ 196.2

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