This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details

This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities.

+ References+ Details

- Definition

The cash inflow associated with the sale or maturity (principal being due) of securities not classified as either held-to-maturity securities or trading securities which are classified as available-for-sale securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 115

-Paragraph 18

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 15

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 16

-Subparagraph b

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26853-111562

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 16

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 12

-Subparagraph (a),(b)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3179-108585

+ Details

Financial Instruments (Available For Sale Securities) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended						3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 Available For Sale Securities: Special Use Funds - Equity Securities [Member]	Dec. 31, 2012 Available For Sale Securities: Special Use Funds - Equity Securities [Member]	Sep. 30, 2013 available for sale securities: Special Use Funds - Debt Securities [Member]	Dec. 31, 2012 available for sale securities: Special Use Funds - Debt Securities [Member]	Sep. 30, 2013 FPL [Member]	Sep. 30, 2012 FPL [Member]	Sep. 30, 2013 FPL [Member]	Sep. 30, 2012 FPL [Member]	Sep. 30, 2013 FPL [Member] Available For Sale Securities: Special Use Funds - Equity Securities [Member]	Dec. 31, 2012 FPL [Member] Available For Sale Securities: Special Use Funds - Equity Securities [Member]	Sep. 30, 2013 FPL [Member] available for sale securities: Special Use Funds - Debt Securities [Member]	Dec. 31, 2012 FPL [Member] available for sale securities: Special Use Funds - Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Available-for-sale Securities, Gross Realized Gains	$ 40	$ 75	$ 103	$ 206					$ 17	$ 20	$ 48	$ 81
Available-for-sale Securities, Gross Realized Losses	26	16	69	48					18	12	48	34
Proceeds from Sale and Maturity of Available-for-sale Securities	822	953	2,604	3,890					613	592	1,967	2,949
Available For Sale Securities Gross Unrealized Gains Abstract
Unrealized gains					1,029	680	47	92					759	521	41	77
Available-for-sale Securities, Gross Unrealized Losses							27	3							21	2
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value							$ 708	$ 277							$ 543	$ 223