XML 53 R18.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Investments in Partnerships and Joint Ventures | 12 Months Ended
--- | ---
Dec. 31, 2017
Investments in Partnerships and Joint Ventures [Abstract] |
Investments in Partnerships and Joint Ventures | Investments in Partnerships and Joint Ventures Certain subsidiaries of NEE, primarily NEER, have noncontrolling non-majority owned interests in various partnerships and joint ventures, essentially all of which own or are in the process of developing natural gas pipelines or own electric generation facilities. At December 31, 2017 and 2016, NEE's investments in partnerships and joint ventures totaled approximately $2,321 million and $1,767 million, respectively, which are included in other investments on NEE's consolidated balance sheets. NEER's interest in these partnerships and joint ventures primarily range from approximately 31% to 50%. At December 31, 2017 and 2016, the principal entities included in NEER's investments in partnerships and joint ventures were Sabal Trail Transmission, LLC (Sabal Trail), Desert Sunlight Investment Holdings, LLC, Northeast Energy, LP and Cedar Point II Wind, LP, and in 2017 also included Mountain Valley Pipeline, LLC. Summarized combined information for these principal entities is as follows:
| 2017 |  | 2016
| (millions)
Net income | $ | 358 |  |  | $ | 264 |
Total assets | $ | 6,001 |  |  | $ | 4,502 |
Total liabilities | $ | 1,217 |  |  | $ | 1,364 |
Partners'/members' equity | $ | 4,784 |  |  | $ | 3,138 |
NEER's share of underlying equity in the principal entities | $ | 2,024 |  |  | $ | 1,423 |
Difference between investment carrying amount and underlying equity in net assets(a) | 105 |  |  | 65 |
NEER's investment carrying amount for the principal entities | $ | 2,129 |  |  | $ | 1,488 |
______________________
(a) | Substantially all of the difference between the investment carrying amount and the underlying equity in net assets is being amortized over a 25-year period.

X
- Definition Investments in Partnerships and Joint Ventures [Abstract] + References No definition available. + Details
Name: | nee_InvestmentsInPartnershipsAndJointVenturesAbstract
Namespace Prefix: | nee_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
Name: | us-gaap_EquityMethodInvestmentsDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration