Net Income (Loss) Per Share - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Equity, Class of Treasury Stock [Line Items]
Authorized amount				$ 2,000,000,000
Common stock repurchase program
Equity, Class of Treasury Stock [Line Items]
Authorized amount				$ 2,000,000,000
Purchases of treasury stock (in shares)	250,000,000	160,000,000	622,000,000
Stock repurchased during period (in shares)	1,379,634	1,511,930	4,532,482
Remaining authorized amount	$ 841,000,000