Is there anything notable or interesting in the 2017 Cash Fl

Is there anything notable or interesting in the 2017 Cash Flow Statement of Southwest, what could each of these changes mean

For example, decrease in cash from operating activities despite increase in net income , why?

Southwest Airlines Co. Consolidated Statement of Cash Flows (in millions) Year ended December 31 2017 2016 2015 CASH FLOWS FROM OPERATING ACTIVITIES Net income Adjustments to reconcile net income to cash provided by (used in) operating activities: S 3.488 $2,244 $ 2,181 1,221 21 1,218 Loss on asset impairment Aircraft grounding charge Unrealized\'realized (gain) loss on fuel derivative instruments Deferred income taxes 63 (1,212 455 Changes in certain assets and liabilities: Accounts and other receivables Other assets Accounts payable and accrued liabilities Air traffic liability (50) (119) 226 (88) 103 961 94 (570) 102) 345 Cash collateral received from (provided to) derivative counterparties Other, net 535 (121) 3,929 (165) Net cash provided by operating activities 3,238 CASH FLOWS FROM INVESTING ACTIVITIES: (2.123) (2.038) (2.041) Assets constructed for others (126) (109) (102) (2.380) (2.388) (1.986) 2,221 Proceeds from sales of short-term and other investments Other, net Net cash used in investing activities 2,408 (2,272 913) CASH FLOWS FROM FINANCING ACTIVITIES: Proceeds from issuance of long-term debt Proceeds from Employee stock plans Reimbursement for assets constructed for others Proceeds from termination of interest rate derivative instrument 515 29 29 46 12 Payments of convertible debt Payments of cash dividends Repayment of construction obligation Repurchase of common stock Other, net (68) (10) (1,600) (1,750) (1.180) (23) Net cash used in financing activities (1.706) (1.924) (1.,024) NET CHANGE IN CASH AND CASH EQUIVALENTS (185) 97 301 CASH AND CASH EQUIVALENTS AT END OF PERIOD s 1495 s 1,680 1,583 CASH PAYMENTS FOR: Interest, net of amount capitalized Income taxes S 8 S100 10 S 992 902 S 1440 SUPPLEMENTAL DISCLOSURE OF NONCASH TRANSACTIONS: Flight equipment acquired through the assumption of debt Flight equipment under capital leases Assets constructed for others SS20 $ S 233 $ 307 $ 193 S 197 196 $ 192

Solution

Following changes are noticed in the cash flow of Southwest Airlines