Share-Based Compensation Long Term Incentive Plan (Details) - PLC Long Term Incentive Plan - USD ($)
$ in Millions |
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1 Months Ended |
3 Months Ended |
9 Months Ended |
Apr. 28, 2016 |
Apr. 27, 2016 |
Apr. 23, 2015 |
Feb. 29, 2016 |
Feb. 28, 2015 |
Feb. 28, 2014 |
Feb. 28, 2013 |
Feb. 15, 2012 |
Mar. 31, 2016 |
Mar. 31, 2015 |
Sep. 30, 2016 |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Maximum Shares Available for Grant under PLC LTIP |
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22,977,116
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| Minimum |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance-Based Awards Payout % Range |
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0.00%
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| Maximum |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| Performance-Based Awards Payout % Range |
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200.00%
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| Restricted Stock Units (RSUs) |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Granted |
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865,000
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| Grant Date Fair Value |
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$ 48
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$ 76
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$ 53
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$ 60
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$ 59
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| Time-Based Awards % Granted For Officers |
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25.00%
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| Time-Based Awards % Granted For Executives |
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50.00%
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| Performance-Based Awards % Granted For Officers |
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75.00%
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| Performance-Based Awards % Granted For Executives |
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50.00%
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| Restricted Stock Units (RSUs) | Board of Directors |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Granted |
27,238
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20,347
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| Grant Date Fair Value |
$ 2
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$ 2
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| RSU's Issued in Period, Gross |
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24,542
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| Fair Value of RSUs Vested in Period |
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$ 2
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| RSU's, Used to Pay Witholding Taxes |
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(1,843)
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| Restricted Stock Units (RSUs) | Executives | 2012 Grant |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Granted |
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1,880,000
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| Restricted Stock Units (RSUs) | Executives | 2013 Grant |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Granted |
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1,450,000
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| Restricted Stock Units (RSUs) | Executives | 2014 Grant |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Granted |
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780,000
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| Restricted Stock Units (RSUs) | Executives | 2015 Grant |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Granted |
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900,000
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| Restricted Stock Units (RSUs) | Executives | 2016 Grant |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Granted |
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710,000
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| Restricted Stock Units (RSUs) | Executives | Time-Based |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Issued in Period, Gross |
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395,744
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535,345
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| Fair Value of RSUs Vested in Period |
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$ 24
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$ 42
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| RSU's, Used to Pay Witholding Taxes |
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146,726
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199,211
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| Restricted Stock Units (RSUs) | Executives | Performance-Based | 2012 Grant |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Issued in Period, Gross |
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1,364,966
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| Fair Value of RSUs Vested in Period |
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$ 107
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| RSU's, Used to Pay Witholding Taxes |
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545,192
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| Restricted Stock Units (RSUs) | Executives | Performance-Based | 2013 Grant |
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
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| RSU's Issued in Period, Gross |
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1,265,339
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| Fair Value of RSUs Vested in Period |
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$ 77
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| RSU's, Used to Pay Witholding Taxes |
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512,371
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