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Other Compensation Liabilities
12 Months Ended
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]  
Other Compensation Liabilities
Other compensation liabilities consisted of the following at December 31 (in millions):
 
2019
 
2018
Share-based payments liability (Note 19)
$
221.8

 
$
386.1

Profit interests compensation liability
94.8

 
171.4

Voluntary deferral plan liability (Note 18)
88.3

 
91.7

Total other compensation liabilities
$
404.9

 
$
649.2


Profit interests compensation expense amounted to $(64.7) million in 2019, $(7.5) million in 2018, and $41.5 million in 2017. Redemptions of profit sharing interests from Affiliate key employees for cash were $12.0 million in 2019, $16.1 million in 2018, and $5.7 million in 2017.
The share-based payments liability includes the Landmark compensation arrangements which amounted to $188.6 million at December 31, 2019 and $350.6 million at December 31, 2018.