XML 47 R51.htm IDEA: XBRL DOCUMENT
v3.19.3

Equity (Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Jan. 01, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | $ (191) | $ (213) | $ (188) | $ (173) |  | $ (178) | $ 111 | $ (188) | $ 111 |  |
Other comprehensive income (loss) before reclassifications | 6 | 15 | (35) | 10 |  | (1) | (24) |  |  |  |
Amounts reclassified from AOCI | 4 | 7 | 11 | 6 |  | 6 | 5 |  |  |  |
Total other comprehensive income, net of tax | 10 | 22 | (24) | 16 | [1] | 5 | (19) | 8 | 2 | [1] |
Acquisition of Gulf Power |  |  | (1) |  |  |  |  |  |  |  |
Impact of NEP deconsolidation | 0 |  |  | 0 | [1] |  | 58 | 0 | 58 | [1] |
Adoption of accounting standards updates |  |  |  |  |  |  |  |  |  |  | $ (328)
Ending balance | (181) | (191) | (213) | (157) |  | (173) | (178) | (181) | (157) |  |
Net Unrealized Gains (Losses) on Cash Flow Hedges |  |  |  |  |  |  |  |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | (38) | (46) | (55) | (67) |  | (74) | (77) | (55) | (77) |  |
Other comprehensive income (loss) before reclassifications | 0 | 0 | 0 | 0 |  | 0 | 0 |  |  |  |
Amounts reclassified from AOCI | 6 | 8 | 10 | 7 |  | 7 | 7 |  |  |  |
Total other comprehensive income, net of tax | 6 | 8 | 10 | 7 |  | 7 | 7 |  |  |  |
Acquisition of Gulf Power |  |  | (1) |  |  |  |  |  |  |  |
Impact of NEP deconsolidation |  |  |  |  |  |  | 3 |  |  |  |
Adoption of accounting standards updates |  |  |  |  |  |  |  |  |  |  | (7)
Ending balance | (32) | (38) | (46) | (60) |  | (67) | (74) | (32) | (60) |  |
Net Unrealized Gains (Losses) on Available for Sale Securities |  |  |  |  |  |  |  |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 9 | 3 | (7) | (5) |  | (2) | 316 | (7) | 316 |  |
Other comprehensive income (loss) before reclassifications | 4 | 7 | 8 | (2) |  | (3) | (5) |  |  |  |
Amounts reclassified from AOCI | (1) | (1) | 2 | 0 |  | 0 | (1) |  |  |  |
Total other comprehensive income, net of tax | 3 | 6 | 10 | (2) |  | (3) | (6) |  |  |  |
Acquisition of Gulf Power |  |  | 0 |  |  |  |  |  |  |  |
Impact of NEP deconsolidation |  |  |  |  |  |  | 0 |  |  |  |
Adoption of accounting standards updates |  |  |  |  |  |  |  |  |  |  | (312)
Ending balance | 12 | 9 | 3 | (7) |  | (5) | (2) | 12 | (7) |  |
Defined Benefit Pension and Other Benefits Plans |  |  |  |  |  |  |  |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | (119) | (118) | (65) | (51) |  | (50) | (39) | (65) | (39) |  |
Other comprehensive income (loss) before reclassifications | 0 | (1) | (52) | 0 |  | 0 | (1) |  |  |  |
Amounts reclassified from AOCI | (1) | 0 | (1) | (1) |  | (1) | (1) |  |  |  |
Total other comprehensive income, net of tax | (1) | (1) | (53) | (1) |  | (1) | (2) |  |  |  |
Acquisition of Gulf Power |  |  | 0 |  |  |  |  |  |  |  |
Impact of NEP deconsolidation |  |  |  |  |  |  | 0 |  |  |  |
Adoption of accounting standards updates |  |  |  |  |  |  |  |  |  |  | (9)
Ending balance | (120) | (119) | (118) | (52) |  | (51) | (50) | (120) | (52) |  |
Net Unrealized Gains (Losses) on Foreign Currency Translation |  |  |  |  |  |  |  |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | (45) | (53) | (63) | (52) |  | (52) | (69) | (63) | (69) |  |
Other comprehensive income (loss) before reclassifications | 1 | 8 | 10 | 11 |  | 0 | (20) |  |  |  |
Amounts reclassified from AOCI | 0 | 0 | 0 | 0 |  | 0 | 0 |  |  |  |
Total other comprehensive income, net of tax | 1 | 8 | 10 | 11 |  | 0 | (20) |  |  |  |
Acquisition of Gulf Power |  |  | 0 |  |  |  |  |  |  |  |
Impact of NEP deconsolidation |  |  |  |  |  |  | 37 |  |  |  |
Adoption of accounting standards updates |  |  |  |  |  |  |  |  |  |  | 0
Ending balance | (44) | (45) | (53) | (41) |  | (52) | (52) | (44) | (41) |  |
Other Comprehensive Income (Loss) Related to Equity Method Investees |  |  |  |  |  |  |  |  |  |  |
AOCI Attributable to Parent, Net of Tax [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 2 | 1 | 2 | 2 |  | 0 | (20) | 2 | (20) |  |
Other comprehensive income (loss) before reclassifications | 1 | 1 | (1) | 1 |  | 2 | 2 |  |  |  |
Amounts reclassified from AOCI | 0 | 0 | 0 | 0 |  | 0 | 0 |  |  |  |
Total other comprehensive income, net of tax | 1 | 1 | (1) | 1 |  | 2 | 2 |  |  |  |
Acquisition of Gulf Power |  |  | 0 |  |  |  |  |  |  |  |
Impact of NEP deconsolidation |  |  |  |  |  |  | 18 |  |  |  |
Adoption of accounting standards updates |  |  |  |  |  |  |  |  |  |  | $ 0
Ending balance | $ 3 | $ 2 | $ 1 | $ 3 |  | $ 2 | $ 0 | $ 3 | $ 3 |  |
[1] | Amounts have been retrospectively adjusted for an accounting standards update related to leases.

X
- Definition AOCI Impacts of NEP Deconsolidation + References No definition available. + Details
Name: | nee_AOCIImpactofNEPDeconsolidation
Namespace Prefix: | nee_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Other Comprehensive Income (Loss), Net Of Tax, Impact Of Acquisition + References No definition available. + Details
Name: | nee_OtherComprehensiveIncomeLossNetOfTaxImpactOfAcquisition
Namespace Prefix: | nee_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_AOCIAttributableToParentNetOfTaxRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e681-108580 + Details
Name: | us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption. + References No definition available. + Details
Name: | us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount after tax, before reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossBeforeReclassificationsNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 + Details
Name: | us-gaap_OtherComprehensiveIncomeLossNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17B -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL34724394-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=118951672&loc=d3e1436-108581 + Details
Name: | us-gaap_ReclassificationFromAccumulatedOtherComprehensiveIncomeCurrentPeriodNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedNetGainLossFromDesignatedOrQualifyingCashFlowHedgesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedNetUnrealizedInvestmentGainLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedTranslationAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementEquityComponentsAxis=nee_AccumulatedIncomeLossRelatedToEquityMethodInvesteeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |