Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Details)

v3.22.0.1
Employee Benefit Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Employee Benefit Plans      
Employer cash contributions $ 10 $ 11 $ 14