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INVESTMENT IN TRANSMISSION AFFILIATES | 9 Months Ended
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Sep. 30, 2018
Equity Method Investments and Joint Ventures [Abstract] |
INVESTMENT IN TRANSMISSION AFFILIATES | INVESTMENT IN TRANSMISSION AFFILIATES We own approximately 60% of ATC, a for-profit, transmission-only company regulated by the FERC for cost of service and certain state regulatory commissions for routing and siting of transmission projects. We also own approximately 75% of ATC Holdco, a separate entity formed in December 2016 to invest in transmission-related projects outside of ATC's traditional footprint. The following tables provide a reconciliation of the changes in our investments in ATC and ATC Holdco:
|  | Three Months Ended September 30, 2018
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,558.4 |  |  | $ | 38.2 |  |  | $ | 1,596.6 |
Add: Earnings (loss) from equity method investment |  | 34.6 |  |  | (0.9 | ) |  | 33.7 |
Add: Capital contributions |  | 9.1 |  |  | 2.2 |  |  | 11.3 |
Less: Distributions |  | 27.8 |  |  | — |  |  | 27.8 |
Less: Other |  | 0.1 |  |  | — |  |  | 0.1 |
Balance at end of period |  | $ | 1,574.2 |  |  | $ | 39.5 |  |  | $ | 1,613.7 |
|  | Three Months Ended September 30, 2017
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,539.5 |  |  | $ | 4.5 |  |  | $ | 1,544.0 |
Add: Earnings (loss) from equity method investment |  | 40.9 |  |  | (1.7 | ) |  | 39.2 |
Add: Capital contributions |  | 12.1 |  |  | 0.7 |  |  | 12.8 |
Less: Distributions |  | 35.2 |  |  | — |  |  | 35.2 |
Balance at end of period |  | $ | 1,557.3 |  |  | $ | 3.5 |  |  | $ | 1,560.8 |
|  | Nine Months Ended September 30, 2018
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,515.8 |  | (1) | $ | 37.6 |  |  | $ | 1,553.4 |
Add: Earnings (loss) from equity method investment |  | 97.8 |  |  | (2.6 | ) |  | 95.2 |
Add: Capital contributions |  | 39.2 |  |  | 4.5 |  |  | 43.7 |
Less: Distributions |  | 78.5 |  | (2) | — |  |  | 78.5 |
Less: Other |  | 0.1 |  |  | — |  |  | 0.1 |
Balance at end of period |  | $ | 1,574.2 |  |  | $ | 39.5 |  |  | $ | 1,613.7 |
(1) | Distributions of $39.9 million, received in the first quarter of 2018, were approved and recorded as a receivable from ATC in other current assets at December 31, 2017.
(2) | Distributions of $27.7 million, received in the fourth quarter of 2018, were approved and recorded as a receivable from ATC in accounts receivable at September 30, 2018.
|  | Nine Months Ended September 30, 2017
(in millions) |  | ATC |  | ATC Holdco |  | Total
Balance at beginning of period |  | $ | 1,443.9 |  | * | $ | — |  |  | $ | 1,443.9 |
Add: Earnings (loss) from equity method investment |  | 131.4 |  |  | (8.5 | ) |  | 122.9 |
Add: Capital contributions |  | 51.3 |  |  | 12.0 |  |  | 63.3 |
Less: Distributions |  | 69.2 |  |  | — |  |  | 69.2 |
Less: Other |  | 0.1 |  |  | — |  |  | 0.1 |
Balance at end of period |  | $ | 1,557.3 |  |  | $ | 3.5 |  |  | $ | 1,560.8 |
* | Distributions of $35.2 million, received in the first quarter of 2017, were approved and recorded as a receivable from ATC in other current assets at December 31, 2016.
We pay ATC for network transmission and other related services it provides. In addition, we provide a variety of operational, maintenance, and project management work for ATC, which is reimbursed by ATC. We are required to pay the cost of needed transmission infrastructure upgrades for new generation projects while the projects are under construction. ATC reimburses us for these costs when the new generation is placed in service. The following table summarizes our significant related party transactions with ATC:
|  | Three Months Ended September 30 |  | Nine Months Ended September 30
(in millions) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Charges to ATC for services and construction |  | $ | 5.0 |  |  | $ | 4.4 |  |  | $ | 13.7 |  |  | $ | 12.3 |
Charges from ATC for network transmission services |  | 84.4 |  |  | 87.4 |  |  | 253.5 |  |  | 262.0 |
Refund from ATC related to a FERC audit |  | — |  |  | — |  |  | 22.0 |  |  | — |
Refund from ATC per FERC ROE order |  | — |  |  | — |  |  | — |  |  | 28.3 |
Our balance sheets included the following receivables and payables related to ATC:
(in millions) |  | September 30, 2018 |  | December 31, 2017
Accounts receivable for services provided to ATC |  | $ | 2.9 |  |  | $ | 1.5 |
Dividends receivable from ATC |  | 27.7 |  |  | 39.9 |
Accounts payable for services received from ATC |  | 28.1 |  |  | 31.2 |
Summarized financial data for ATC is included in the following tables:
|  | Three Months Ended September 30 |  | Nine Months Ended September 30
(in millions) |  | 2018 |  | 2017 |  | 2018 |  | 2017
Income statement data |  |  |  |  |  |  |  |
Operating revenues |  | $ | 170.4 |  |  | $ | 171.1 |  |  | $ | 501.3 |  |  | $ | 522.4 |
Operating expenses |  | 87.9 |  |  | 85.3 |  |  | 264.3 |  |  | 251.0 |
Other expense, net |  | 27.4 |  |  | 27.2 |  |  | 80.4 |  |  | 78.7 |
Net income |  | $ | 55.1 |  |  | $ | 58.6 |  |  | $ | 156.6 |  |  | $ | 192.7 |
(in millions) |  | September 30, 2018 |  | December 31, 2017
Balance sheet data |  |  |  |
Current assets |  | $ | 95.3 |  |  | $ | 87.7 |
Noncurrent assets |  | 4,857.6 |  |  | 4,598.9 |
Total assets |  | $ | 4,952.9 |  |  | $ | 4,686.6 |
Current liabilities |  | $ | 640.6 |  |  | $ | 767.2 |
Long-term debt |  | 2,013.9 |  |  | 1,790.6 |
Other noncurrent liabilities |  | 313.6 |  |  | 240.3 |
Shareholders' equity |  | 1,984.8 |  |  | 1,888.5 |
Total liabilities and shareholders' equity |  | $ | 4,952.9 |  |  | $ | 4,686.6 |

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- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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