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Share-Based Compensation Long Term Incentive Plan (Details) (USD $)
In Millions, except Share data, unless otherwise specified |
6 Months Ended | 3 Months Ended | 6 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended | 3 Months Ended | 6 Months Ended | 11 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
PLC Long Term Incentive Plan [Member]
|
Jun. 30, 2013
PLC Long Term Incentive Plan [Member]
|
Jun. 30, 2014
PLC Long Term Incentive Plan [Member]
|
Jun. 30, 2013
PLC Long Term Incentive Plan [Member]
|
Nov. 22, 2011
PLC Long Term Incentive Plan [Member]
|
Feb. 15, 2012
PLC Long Term Incentive Plan [Member]
Minimum [Member]
|
Feb. 15, 2012
PLC Long Term Incentive Plan [Member]
Maximum [Member]
|
Apr. 03, 2014
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Apr. 25, 2013
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Apr. 24, 2013
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Jun. 14, 2012
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Jun. 13, 2012
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Nov. 22, 2011
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Feb. 28, 2014
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Feb. 28, 2013
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Feb. 15, 2012
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Mar. 31, 2012
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Jun. 30, 2014
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Jun. 30, 2013
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
Nov. 22, 2011
PLC Long Term Incentive Plan [Member]
Restricted Stock Units (RSUs) [Member]
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||||||||||||||||||||
| Maximum Shares Granted for PLC LTIP | 22,977,116 | |||||||||||||||||||||
| LTIP Shares Granted | 24,144 | 37,674 | 64,459 | 51,003 | 800,000 | 1,450,000 | 1,880,000 | 823,000 | ||||||||||||||
| Fair Value of LTIP Grant Date Fair Value | $ 2 | $ 2 | $ 2 | $ 59 | $ 53 | $ 60 | $ 1 | |||||||||||||||
| RSU's Issued in Period, Gross | 38,179 | 64,713 | 51,003 | 365,930 | 218,070 | |||||||||||||||||
| Fair Value RSUs Vested Date Fair Value | 3 | 3 | 1 | 23 | 9 | |||||||||||||||||
| RSU's, Used to Pay Witholding Taxes | (4,656) | (7,691) | (1,020) | (131,913) | (78,692) | |||||||||||||||||
| Time-Based Awards % Granted For Officers | 25.00% | |||||||||||||||||||||
| Time-Based Awards % Granted For Executives | 50.00% | |||||||||||||||||||||
| Performance-Based Awards % Granted For Officers | 75.00% | |||||||||||||||||||||
| Performance-Based Awards % Granted For Executives | 50.00% | |||||||||||||||||||||
| Performance-Based Awards Payout % Range | 0.00% | 200.00% | ||||||||||||||||||||
| RSU Share-based Compensation Expense | 19 | 14 | 33 | 24 | ||||||||||||||||||
| RSU Share-based Compensation Expense, Net of Tax | 15 | 10 | 25 | 18 | ||||||||||||||||||
| RSU Awards, Total Compensation Cost Not yet Recognized | 94 | 94 | ||||||||||||||||||||
| Payments Related to Tax Withholding for Share-based Compensation | $ 8 | $ 14 | $ 8 | $ 3 | ||||||||||||||||||