Stock Incentive Plan - Summary of Stock Options Activity By Exercise Price Range (Details) shares in Millions	12 Months Ended
	Dec. 31, 2020 $ / shares shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number outstanding (in shares)	232,026
Remaining Contract life (in years)	3 years 14 days
20.25
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation, shares authorized under stock option plans, exercise price (in dollars per share) | $ / shares	$ 20.25
Number outstanding (in shares)	19,397
Remaining Contract life (in years)	1 year 1 month 24 days
20.91
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation, shares authorized under stock option plans, exercise price (in dollars per share) | $ / shares	$ 20.91
Number outstanding (in shares)	39,232
Remaining Contract life (in years)	2 years 1 month 20 days
22.04
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation, shares authorized under stock option plans, exercise price (in dollars per share) | $ / shares	$ 22.04
Number outstanding (in shares)	13,203
Remaining Contract life (in years)	1 month 24 days
28.67
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation, shares authorized under stock option plans, exercise price (in dollars per share) | $ / shares	$ 28.67
Number outstanding (in shares)	65,172
Remaining Contract life (in years)	3 years 1 month 20 days
34.25
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based compensation, shares authorized under stock option plans, exercise price (in dollars per share) | $ / shares	$ 34.25
Number outstanding (in shares)	95,022
Remaining Contract life (in years)	4 years 1 month 17 days