Incentive Compensation Plans Plan Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2021 USD ($)
Share-based Payment Arrangement [Abstract]
Performance cash awards granted during the period target value	$ 38.3
Restricted cash awards granted during the period target value	$ 76.6
Performance based cash award vesting period	3 years
Restricted cash awards vesting period floor	2 years
Cash awards vesting period	3 years