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Equity (Tables)
 12 Months Ended
Dec. 31, 2022
Equity [Abstract]  
Quarterly distributions on common units
The table below presents information regarding the quarterly dividends on the common shares, which were made at the sole discretion of the Board of Directors of the Company.
Dividend Record DateDividend Payment DateDividend per Common ShareDividend to Common Stockholders
(Dollars in millions, except per share data)
May 11, 2021May 19, 2021$0.25 $88.7 
August 10, 2021August 17, 20210.25 89.3 
November 9, 2021November 17, 20210.25 89.1 
February 15, 2022February 23, 20220.25 89.5 
Total 2021 Dividend Year$1.00 $356.6 
May 10, 2022May 17, 2022$0.325 $117.6 
August 9, 2022August 16, 20220.325 118.3 
November 18, 2022November 25, 20220.325 118.2 
February 22, 2023March 1, 20230.325 118.4 
Total 2022 Dividend Year$1.30 $472.5