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Supplemental Cash Flow Information Supplemental Cash Flow Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2014
Supplemental Cash Flow Information |  |  |
Interest paid | $ 1,300 | $ 1,300 | $ 1,300
Interest capitalized | 235 | 214 | 175
Capital lease obligations incurred | 81 |  | 70
Acquisition of notes payable |  | 78 |
Accounts payable and accrued liabilities |  |  |
Supplemental Cash Flow Information |  |  |
Construction in progress and Nuclear fuel expenditures | $ 526 | 530 | $ 391
Maximum |  |  |
Supplemental Cash Flow Information |  |  |
Capital lease obligations incurred |  | $ 1 |

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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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