XML 38 R14.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Lines of Credit and Short-Term Borrowings | 12 Months Ended
--- | ---
Dec. 31, 2018
Lines of Credit and Short-Term Borrowings |
Lines of Credit and Short-Term Borrowings | Lines of Credit and Short-Term Borrowings Pinnacle West and APS maintain committed revolving credit facilities in order to enhance liquidity and provide credit support for their commercial paper programs, to refinance indebtedness, and for other general corporate purposes. The table below presents the consolidated credit facilities and the amounts available and outstanding as of December 31, 2018 and 2017 (dollars in thousands):
| December 31, 2018 |  | December 31, 2017
| Pinnacle West | APS | Total |  | Pinnacle West | APS | Total
Commitments under Credit Facilities | $ | 350,000 |  | $ | 1,000,000 |  | $ | 1,350,000 |  |  | $ | 325,000 |  | $ | 1,000,000 |  | $ | 1,325,000 |
Outstanding Commercial Paper and Revolving Credit Facility Borrowings | (76,400 | ) | — |  | (76,400 | ) |  | (95,400 | ) | — |  | (95,400 | )
Amount of Credit Facilities Available | $ | 273,600 |  | $ | 1,000,000 |  | $ | 1,273,600 |  |  | $ | 229,600 |  | $ | 1,000,000 |  | $ | 1,229,600 |
Weighted-Average Commitment Fees | 0.125% | 0.100% |  |  | 0.125% | 0.100% |
Pinnacle West On June 28, 2018, Pinnacle West refinanced its 364-day $125 million unsecured revolving credit facility that would have matured on July 30, 2018 with a new 364-day $150 million credit facility that matures June 27, 2019. Borrowings under the facility bear interest at LIBOR plus 0.70% per annum. At December 31, 2018, Pinnacle West had $54 million outstanding under the facility. On July 12, 2018, Pinnacle West replaced its $200 million revolving credit facility that would have matured in May 2021, with a new $200 million facility that matures in July 2023. Pinnacle West has the option to increase the amount of the facility up to a maximum of $300 million upon the satisfaction of certain conditions and with the consent of the lenders. At December 31, 2018, Pinnacle West had no outstanding borrowings under its credit facility, no letters of credit outstanding and $22 million of commercial paper borrowings. APS On July 12, 2018, APS replaced its $500 million revolving credit facility that would have matured in May 2021, with a new $500 million facility that matures in July 2023. At December 31, 2018, APS had two revolving credit facilities totaling $1 billion, including a $500 million credit facility that matures in June 2022 and the above-mentioned $500 million facility. APS may increase the amount of each facility up to a maximum of $700 million, for a total of $1.4 billion, upon the satisfaction of certain conditions and with the consent of the lenders. Interest rates are based on APS’s senior unsecured debt credit ratings. These facilities are available to support APS’s $500 million commercial paper program, for bank borrowings or for issuances of letters of credit. At December 31, 2018, APS had no commercial paper outstanding and no outstanding borrowings or letters of credit under its revolving credit facilities. See "Financial Assurances" in Note 10 for a discussion of APS's other outstanding letters of credit. Debt Provisions On November 27, 2018, the ACC issued a financing order in which, subject to specified parameters and procedures, it approved APS’s short-term debt authorization equal to a sum of (i) 7% of APS’s capitalization, and (ii) $500 million (which is required to be used for costs relating to purchases of natural gas and power). See Note 6 for additional long-term debt provisions.

X
- References No definition available. + Details
Name: | pnw_LinesOfCreditAndShortTermBorrowingAbstract
Namespace Prefix: | pnw_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for short-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
Name: | us-gaap_ShortTermDebtTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration