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Equity and Comprehensive Income (Loss) - Additional Information (Details) - USD ($)
$ in Millions
 1 Months Ended 12 Months Ended
Nov. 23, 2021
Nov. 30, 2021
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Feb. 29, 2020
Class of Stock [Line Items]            
Number of shares authorized to be repurchased (in shares)           100,000,000
Number of shares repurchased (in shares)     0 0 0  
Remaining number of shares authorized for repurchase (in shares)     100,000,000      
Common shares issued from Treasury stock (in shares)     4,400,000 2,100,000 2,100,000  
Common shares issued from treasury stock     $ 192 $ 91 $ 91  
Noncontrolling Interests            
Class of Stock [Line Items]            
Acquisition of additional interests in certain controlled wireless partnerships     $ (431) $ (583) $ (573)  
TracFone Wireless, Inc.            
Class of Stock [Line Items]            
Number of shares issuable (in shares) 57,596,544 57,600,000        
Common stock value consideration to acquire business $ 3,000 $ 3,000