Stock-Based Compensation - Schedule of Number of Common Shares Reserved for Issuance (Details) - shares shares in Millions	Dec. 31, 2021	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for granting under the 2019 plan (in shares)	19.5	19.7
Options outstanding (shares)	0.3	0.5
Total shares reserved for issuance (in shares)	19.8	20.2
Total shares reserved for issuance (less than) (in shares)	19.8	20.2
Director Deferred Stock Ownership Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares reserved for issuance (in shares)	1.0	1.0
Total shares reserved for issuance (less than) (in shares)	1.0	1.0