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CONSOLIDATED STATEMENTS OF CASH FLOWS (CAD) In Millions, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2013 | Jun. 30, 2012 | Jun. 30, 2013 | Jun. 30, 2012
Operating activities |  |  |  |
Earnings | 126 | 76 | 312 | 432
Depreciation and amortization | 334 | 310 | 656 | 610
Changes in unrealized loss on derivative instruments | 358 | 330 | 606 | 531
Cash distributions in excess of equity earnings | 242 | 337 | 211 | 387
Deferred income taxes (recovery)/expenses | 70 | (61) | 71 | (85)
Other |  | 27 | 65 | 47
Changes in regulatory assets and liabilities | 8 | 11 | 20 | 26
Changes in environmental liabilities, net of recoveries (Note 14) | 40 | (7) | 201 | (9)
Changes in operating assets and liabilities | (241) | (39) | (412) | (307)
Net operating activities | 937 | 984 | 1,730 | 1,632
Investing activities |  |  |  |
Additions to property, plant and equipment | (1,599) | (1,183) | (3,056) | (1,999)
Long-term investments | (295) | (38) | (423) | (91)
Additions to intangible assets | (60) | (36) | (111) | (84)
Acquisition |  | (214) |  | (221)
Affiliate loans, net | 1 | 1 | 3 | 3
Changes in restricted cash | 4 | (5) | (5) | (11)
Net investing activities | (1,949) | (1,475) | (3,592) | (2,403)
Financing activities |  |  |  |
Net change in bank indebtedness and short-term borrowings | 358 | 66 | 146 | (106)
Net change in commercial paper and credit facility draws | (250) | (697) | 129 | (917)
Net change in Southern Lights project financing | (5) | (14) | (5) | (19)
Debenture and term note issues |  |  |  | 500
Debenture and term note repayments | (210) |  | (410) |
Contributions from noncontrolling interests | 5 | 1 | 280 | 3
Distributions to noncontrolling interests | (114) | (103) | (228) | (205)
Contributions from redeemable noncontrolling interests |  |  | 91 |
Distributions to redeemable noncontrolling interests | (18) | (11) | (36) | (23)
Preference shares issued | 587 | 592 | 986 | 1,418
Common shares issued | 592 | 392 | 614 | 409
Preference share dividends | (41) | (19) | (79) | (34)
Common share dividends | (173) | (149) | (337) | (305)
Net financing activities | 731 | 58 | 1,151 | 721
Effect of translation of foreign denominated cash and cash equivalents | 12 | 6 | 12 | (6)
Decrease in cash and cash equivalents | (269) | (427) | (699) | (56)
Cash and cash equivalents at beginning of period | 1,346 | 1,094 | 1,776 | 723
Cash and cash equivalents at end of period | 1,077 | 667 | 1,077 | 667

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- Definition The net cash inflow or cash outflow from issuing (borrowing) and repaying commercial paper and from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). + References No definition available. + Details
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8, 9 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6361293&loc=d3e6676-107765 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3044-108585 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 26 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Cash outflow in the form of ordinary dividends to preferred shareholders, generally out of earnings. + 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 Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 18 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3291-108585 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 20 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Investing Activities -URI http://asc.fasb.org/extlink&oid=6516133 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3213-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 15, 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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