Annual report pursuant to Section 13 and 15(d)

Income Taxes - Summary of Income Tax Contingencies (Details)

v3.22.0.1
Income Taxes - Summary of Income Tax Contingencies (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Changes in uncertain income tax positions    
Balance, beginning of year $ 433 $ 406
Increases in tax positions for prior years 9 14
Increases in tax positions for current year 13 20
Decreases in tax positions for prior years (24) (7)
Decreases related to settlement with taxing authorities (252) 0
Balance, end of year $ 179 $ 433