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Share-Based Compensation Weighting for Components of Performance Based RSU Awards (Details) - PLC Long Term Incentive Plan - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2020
Restricted Stock Units (RSUs)      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance-Based Awards % Granted For Officers 60.00%   75.00%
2020 - 2022 Grants      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Average return on net assets [1] 33.00%    
Cumulative net income 33.00%    
Relative total shareholder return [2] 33.00%    
2018 - 2019 Grants      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Average return on net assets [1] 50.00%    
Cumulative net income 25.00%    
Relative total shareholder return [2] 25.00%    
2018 Grant | Restricted Stock Units (RSUs) | Executives | Performance-Based      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
RSU's Issued in Period, Gross   288,074  
Fair Value of RSUs Vested in Period   $ 43  
RSU's, Used to Pay Witholding Taxes   121,609  
2019 Grant | Restricted Stock Units (RSUs) | Executives | Performance-Based      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
RSU's Issued in Period, Gross 325,283    
Fair Value of RSUs Vested in Period $ 42    
RSU's, Used to Pay Witholding Taxes 136,143    
[1] Average return on net assets is measured by tax-affected operating income divided by average net working capital plus average net property, plant and equipment for each calendar year during the respective performance period.
[2] Relative total shareholder return is measured by comparing the average closing price per share of the Company’s ordinary shares for the specified trading days in the fourth quarter of the end of the performance period to the average closing price per share of the Company’s ordinary shares for the specified trading days in the fourth quarter of the year preceding the grant, including dividends, and assessed against a comparable measure of competitor and peer group companies.