CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Total property, plant and equipment - net	$ 42,490	$ 39,075
Customer receivables, net of allowances	11	20
Securitized storm-recovery costs	517	581
Common stock, par value	$ 0.01	$ 0.01
Common stock, authorized (in shares)	800,000,000	800,000,000
Common stock, outstanding (in shares)	416,000,000	421,000,000
Long-term debt	20,810	18,013
Related to VIEs [Member]
Total property, plant and equipment - net	3,063	2,398
Securitized storm-recovery costs	317	356
Long-term debt	1,364	1,338
Florida Power and Light Company [Member]
Customer receivables, net of allowances	8	17
Securitized storm-recovery costs	517	581
Common stock, authorized (in shares)	1,000	1,000
Common stock, par value	$ 0	$ 0
Common stock, issued (in shares)	1,000	1,000
Common stock, outstanding (in shares)	1,000	1,000
Long-term debt	7,483	6,682
Florida Power and Light Company [Member] | Related to VIEs [Member]
Long-term debt	$ 437	$ 486