Commitments & Contingencies	2 Months Ended
Dec. 31, 2016
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	COMMITMENTS AND CONTINGENCIES LEASES We lease certain buildings, land and equipment for use in our operations under noncancelable operating leases. We account for these leases by recognizing the future minimum lease payments as expense on a straight-line basis over the respective minimum lease terms under current accounting guidance. LONG-TERM CONTRACTS We routinely enter into long-term gas supply commodity and capacity commitments and other agreements that commit future cash flows to acquire services we need in our business. These commitments include pipeline and storage capacity contracts and gas supply contracts to provide service to our customers and telecommunication and information technology contracts and other purchase obligations. Costs arising from the gas supply commodity and capacity commitments, while significant, are pass-through costs to our customers and are fully recoverable subject to our purchased gas adjustment (PGA) procedures and prudence reviews in North Carolina and South Carolina and under the TIP in Tennessee. The time periods for fixed payments under pipeline and storage capacity contracts are up to nineteen years. The time periods for fixed payments of reservation fees under gas supply contracts are up to three years. The time period for the gas supply purchase commitments is up to fifteen years. The time periods for the telecommunications and technology outsourcing contracts, maintenance fees for hardware and software applications, usage fees, local and long-distance costs and wireless service are up to five years. Other purchase obligations consist primarily of commitments for pipeline products, equipment and contractors. Certain storage and pipeline capacity contracts require the payment of demand charges that are based on rates approved by the Federal Energy Regulatory Commission (FERC) in order to maintain our right to access the natural gas storage or the pipeline capacity on a firm basis during the contract term. The demand charges that are incurred in each period are recognized on the Condensed Consolidated Statements of Operations and Comprehensive Income as part of gas purchases and included within "Cost of natural gas." LEGAL We have routine litigation in the ordinary course of business. We do not expect final disposition of these proceedings to have a material effect, either individually or in the aggregate, on our financial position, results of operations or cash flows. LETTERS OF CREDIT AND SURETY BONDS We use letters of credit to guarantee claims from self-insurance under our general and automobile liability policies. We had $1.7 million in letters of credit that were issued and outstanding as of December 31, 2016. See Note 6 for additional information concerning letters of credit. Surety bonds held by us as of October 31, 2016 are now held by our parent, Duke Energy. ENVIRONMENTAL MATTERS Our three regulatory commissions have authorized us to utilize deferral accounting in connection with costs for environmental assessments and cleanups. Accordingly, we have established regulatory assets for actual environmental costs incurred and have recorded estimated environmental liabilities, including those for our manufactured gas plant sites, liquefied natural gas (LNG) facilities and underground storage tanks. There were no material changes in the status of environmental-related matters during the two months ended December 31, 2016. Additional information concerning commitments and contingencies is set forth in Note 7 to the Consolidated Financial Statements in our Form 10-K for the year ended October 31, 2016.

COMMITMENTS AND CONTINGENCIES

LEASES

We lease certain buildings, land and equipment for use in our operations under noncancelable operating leases. We account for these leases by recognizing the future minimum lease payments as expense on a straight-line basis over the respective minimum lease terms under current accounting guidance.

LONG-TERM CONTRACTS

We routinely enter into long-term gas supply commodity and capacity commitments and other agreements that commit future cash flows to acquire services we need in our business. These commitments include pipeline and storage capacity contracts and gas supply contracts to provide service to our customers and telecommunication and information technology contracts and other purchase obligations. Costs arising from the gas supply commodity and capacity commitments, while significant, are pass-through costs to our customers and are fully recoverable subject to our purchased gas adjustment (PGA) procedures and prudence reviews in North Carolina and South Carolina and under the TIP in Tennessee. The time periods for fixed payments under pipeline and storage capacity contracts are up to nineteen years. The time periods for fixed payments of reservation fees under gas supply contracts are up to three years. The time period for the gas supply purchase commitments is up to fifteen years. The time periods for the telecommunications and technology outsourcing contracts, maintenance fees for hardware and software applications, usage fees, local and long-distance costs and wireless service are up to five years. Other purchase obligations consist primarily of commitments for pipeline products, equipment and contractors.

Certain storage and pipeline capacity contracts require the payment of demand charges that are based on rates approved by the Federal Energy Regulatory Commission (FERC) in order to maintain our right to access the natural gas storage or the pipeline capacity on a firm basis during the contract term. The demand charges that are incurred in each period are recognized on the Condensed Consolidated Statements of Operations and Comprehensive Income as part of gas purchases and included within "Cost of natural gas."

LEGAL

We have routine litigation in the ordinary course of business. We do not expect final disposition of these proceedings to have a material effect, either individually or in the aggregate, on our financial position, results of operations or cash flows.

LETTERS OF CREDIT AND SURETY BONDS

We use letters of credit to guarantee claims from self-insurance under our general and automobile liability policies. We had $1.7 million in letters of credit that were issued and outstanding as of December 31, 2016. See Note 6 for additional information concerning letters of credit. Surety bonds held by us as of October 31, 2016 are now held by our parent, Duke Energy.

ENVIRONMENTAL MATTERS

Our three regulatory commissions have authorized us to utilize deferral accounting in connection with costs for environmental assessments and cleanups. Accordingly, we have established regulatory assets for actual environmental costs incurred and have recorded estimated environmental liabilities, including those for our manufactured gas plant sites, liquefied natural gas (LNG) facilities and underground storage tanks. There were no material changes in the status of environmental-related matters during the two months ended December 31, 2016.

Additional information concerning commitments and contingencies is set forth in Note 7 to the Consolidated Financial Statements in our Form 10-K for the year ended October 31, 2016.