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Condensed Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |  |
Net income | $ 329 | $ 259 | $ 946 | $ 542
Adjustments to reconcile net income to cash provided by (used in) operating activities: |  |  |  |
Depreciation and amortization | 238 | 221 | 687 | 643
Unrealized (gain) loss on fuel derivative instruments | 63 | (58) | (4) | (24)
Deferred income taxes | 392 | 29 | 472 | 52
Changes in certain assets and liabilities: |  |  |  |
Accounts and other receivables | (22) | 73 | (83) | (74)
Other assets | 6 | (63) | (7) | (83)
Accounts payable and accrued liabilities | (534) | (98) | (86) | 185
Air traffic liability | (108) | (95) | 806 | 811
Cash collateral paid to derivative counterparties | (98) | 80 | 8 | 56
Other, net | (26) | 80 | (41) | 80
Net cash provided by operating activities | 240 | 428 | 2,698 | 2,188
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |  |
Capital expenditures | 433 | 268 | 1,340 | 995
Purchases of short-term investments | (415) | (896) | (2,344) | (2,520)
Proceeds from sales of short-term and other investments | 805 | 805 | 2,427 | 2,385
Payments for (Proceeds from) Other Investing Activities | (1) | 0 | (2) | 0
Net cash used in investing activities | (44) | (359) | (1,259) | (1,130)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |  |
Proceeds from Employee stock plans | 23 | 12 | 96 | 31
Reimbursement for assets constructed for others | 26 | 0 | 26 | 0
Payments of long-term debt and capital lease obligations | (48) | (51) | (167) | (267)
Payments of cash dividends | (41) | (28) | (138) | (71)
Repayment of construction obligation | (3) | (2) | (8) | (3)
Repurchase of common stock | (200) | (150) | (755) | (501)
Other, net | (3) | (6) | (16) | (27)
Net cash used in financing activities | (246) | (225) | (962) | (838)
NET CHANGE IN CASH AND CASH EQUIVALENTS | (50) | (156) | 477 | 220
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD | 1,882 | 1,489 | 1,355 | 1,113
CASH AND CASH EQUIVALENTS AT END OF PERIOD | 1,832 | 1,333 | 1,832 | 1,333
CASH PAYMENTS FOR: |  |  |  |
Interest, net of amount capitalized | 35 | 39 | 102 | 106
Income taxes | 132 | 124 | 144 | 147
SUPPLEMENTAL DISCLOSURE OF NONCASH TRANSACTIONS |  |  |  |
Assets constructed for others | $ 27 | $ 15 | $ 59 | $ 90

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- Definition The cash inflow associated with the amount received from the stock plan during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3255-108585 + Details
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- Definition The cash outflow associated with security instruments that either represent a creditor or an ownership relationship with the holder of the investment security with a maturity of beyond one year or normal operating cycle, if longer. Includes repayments of (a) debt, (b) capital lease obligations, (c) mandatory redeemable capital securities, and (d) any combination of (a), (b), or (c). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 + Details
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