1.0.0.3falsePARENTHETICAL DATA TO CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)In Millionsfalse1$falsefalseu000Standardhttp://www.xbrl.org/2003/iso4217USDiso42170u002Standardhttp://www.xbrl.org/2003/instancesharesxbrli0false2$falsefalseu000Standardhttp://www.xbrl.org/2003/iso4217USDiso4217053us-gaap_AllowanceForDoubtfulAccountsReceivableCurrentus-gaaptruecreditinstantmonetaryNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalse1truetrue2300000023falsefalse2truetrue2900000029falsefalseNo definition available.No authoritative reference available.false63fpl_AllowanceFordoubtfullOtherReceivablesfplfalsenainstantmonetaryA provision for other receivables due within one year that are expected to be uncollectible.falsefalsefalsefalsefalsefalsefalsefalsefalse1truetrue10000001falsefalse2truetrue20000002falsefalseA provision for other receivables due within one year that are expected to be uncollectible.No authoritative reference available.falsefalse22falseMillionsUnKnownUnKnownfalsetrue