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Supplemental Cash Flow Information Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2015 | Sep. 30, 2014 | Sep. 30, 2013
Supplemental Cash Flow Information |  |  |
Interest paid | $ 1,300 | $ 1,300 | $ 1,300
Interest capitalized | 214 | 175 | 168
Bellefonte amounts included in Construction expenditures |  |  | 162
Financing non-cash activity for capital leases |  | 70 | 20
Accounts payable and accrued liabilities |  |  |
Supplemental Cash Flow Information |  |  |
Construction in progress and Nuclear fuel expenditures | $ 530 | $ 391 | $ 270

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. Also, The net cash inflow or outflow from any material that is commonly used in the generation of nuclear energy. + References No definition available. + Details
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- Definition The increase during the period in capital lease obligations due to entering into new capital leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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