XML 78 R80.htm IDEA: XBRL DOCUMENT v2.4.1.9
Preferred Stock Preferred Stock (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Payments
Dec. 31, 2013
Class of Stock [Line Items]    
Stock Redeemed or Called During Period, Value   $ 40us-gaap_StockRedeemedOrCalledDuringPeriodValue
Number of Full Quarterly Dividend Payments in Default Before Preferred Stockholders Elect Board of Directors 4pcorp_NumberOfFullQuarterlyDividendPaymentsInDefaultBeforePreferredStockholdersElectBoardOfDirectors  
Preferred Stock Class, Serial Preferred [Member]    
Class of Stock [Line Items]    
Preferred Stock, Shares Authorized 3,500,000us-gaap_PreferredStockSharesAuthorized
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
3,500,000us-gaap_PreferredStockSharesAuthorized
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
Preferred Stock, Stated Value Per Share 100us-gaap_PreferredStockParOrStatedValuePerShare
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
$ 100us-gaap_PreferredStockParOrStatedValuePerShare
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
Preferred Stock, Shares Issued 24,000us-gaap_PreferredStockSharesIssued
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
24,000us-gaap_PreferredStockSharesIssued
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
Preferred Stock, Shares Outstanding 24,000us-gaap_PreferredStockSharesOutstanding
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
24,000us-gaap_PreferredStockSharesOutstanding
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
Preferred Stock Class, No Par Serial Preferred [Member]    
Class of Stock [Line Items]    
Preferred Stock, No Par Serial Preferred, Shares Authorized 16,000,000pcorp_SharesAuthorizedForCertainClassOfPreferredStock
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassNoParSerialPreferredMember
16,000,000pcorp_SharesAuthorizedForCertainClassOfPreferredStock
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassNoParSerialPreferredMember
Preferred Stock, No Par Serial Preferred Stock, Shares Issued 0pcorp_SharesIssuedForCertainClassOfPreferredStock
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassNoParSerialPreferredMember
0pcorp_SharesIssuedForCertainClassOfPreferredStock
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassNoParSerialPreferredMember
Preferred Stock, No Par Serial Preferred, Shares Outstanding 0pcorp_SharesOutstandingForCertainClassOfPreferredStock
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassNoParSerialPreferredMember
0pcorp_SharesOutstandingForCertainClassOfPreferredStock
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassNoParSerialPreferredMember
Preferred Stock Class, 5% Preferred [Member]    
Class of Stock [Line Items]    
Preferred Stock, Shares Authorized 127,000us-gaap_PreferredStockSharesAuthorized
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClass5PercentPreferredMember
127,000us-gaap_PreferredStockSharesAuthorized
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClass5PercentPreferredMember
Preferred Stock, Shares Issued 0us-gaap_PreferredStockSharesIssued
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClass5PercentPreferredMember
0us-gaap_PreferredStockSharesIssued
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClass5PercentPreferredMember
Preferred Stock, Dividend Rate, Percentage 5.00%us-gaap_PreferredStockDividendRatePercentage
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClass5PercentPreferredMember
5.00%us-gaap_PreferredStockDividendRatePercentage
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClass5PercentPreferredMember
Preferred Stock, Shares Outstanding 0us-gaap_PreferredStockSharesOutstanding
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClass5PercentPreferredMember
0us-gaap_PreferredStockSharesOutstanding
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClass5PercentPreferredMember
Minimum [Member] | Preferred Stock Class, Serial Preferred [Member]    
Class of Stock [Line Items]    
Preferred Stock, Dividend Rate, Percentage 6.00%us-gaap_PreferredStockDividendRatePercentage
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
6.00%us-gaap_PreferredStockDividendRatePercentage
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
Maximum [Member] | Preferred Stock Class, Serial Preferred [Member]    
Class of Stock [Line Items]    
Preferred Stock, Dividend Rate, Percentage 7.00%us-gaap_PreferredStockDividendRatePercentage
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
7.00%us-gaap_PreferredStockDividendRatePercentage
/ pcorp_PreferredStockClassAxis
= pcorp_PreferredStockClassSerialPreferredMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
Redeemable Preferred Stock [Member]    
Class of Stock [Line Items]    
Stock Redeemed or Called During Period, Value   $ 40us-gaap_StockRedeemedOrCalledDuringPeriodValue
/ us-gaap_StatementClassOfStockAxis
= us-gaap_RedeemablePreferredStockMember