v2.4.0.8
Share-Based Compensation Summary of Activity for LTIP RSU's (Details) (PLC Long Term Incentive Plan [Member], USD $)
In Millions, except Share data, unless otherwise specified
3 Months Ended 9 Months Ended 0 Months Ended 1 Months Ended 0 Months Ended 9 Months Ended 11 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Dec. 31, 2013
Apr. 03, 2014
Restricted Stock Units (RSUs) [Member]
Apr. 25, 2013
Restricted Stock Units (RSUs) [Member]
Apr. 24, 2013
Restricted Stock Units (RSUs) [Member]
Jun. 14, 2012
Restricted Stock Units (RSUs) [Member]
Jun. 13, 2012
Restricted Stock Units (RSUs) [Member]
Nov. 22, 2011
Restricted Stock Units (RSUs) [Member]
Feb. 28, 2014
Restricted Stock Units (RSUs) [Member]
Feb. 28, 2013
Restricted Stock Units (RSUs) [Member]
Feb. 15, 2012
Restricted Stock Units (RSUs) [Member]
Sep. 30, 2014
Restricted Stock Units (RSUs) [Member]
Sep. 30, 2013
Restricted Stock Units (RSUs) [Member]
Sep. 30, 2012
Restricted Stock Units (RSUs) [Member]
Nov. 22, 2011
Restricted Stock Units (RSUs) [Member]
Dec. 31, 2013
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                                      
Allocated Share-based Compensation Expense $ 21 $ 10 $ 54 $ 34                              
Allocated Share-based Compensation Expense, Net of Tax 16 8 41 26                              
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Granted in Period, Fair Value           2 2   2           53 60 59 1  
RSU Awards, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition     2 years 0 months                                
LTIP Shares, Nonvested, Number                             3,170,000       2,918,000
LTIP Nonvested, Weighted Average Grant Date Fair Value $ 44.59   $ 44.59   $ 36.55                            
LTIP Shares Granted           24,144 37,674   64,459   51,003 800,000 1,450,000 1,880,000 823,000        
LTIP Grants in Period, Weighted Average Grant Date Fair Value     $ 67.92                                
LTIP RSU's, Vested in Period                             (405,000)        
LTIP Vested in Period, Weighted Average Grant Date Fair Value     $ 35.52                                
LTIP Shares, Forfeited in Period                             (166,000)        
LTIP Shares, Forfeitures, Weighted Average Grant Date Fair Value     $ 40.88                                
Stock Issued During Period, Shares, Restricted Stock Award, Gross           38,179   64,713   51,003   365,930 218,070            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value           $ 3   $ 3   $ 1   $ 23 $ 9            
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Withheld for Taxes in Period           4,656   7,691   1,020   131,913 78,692