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Revenue Recognition - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Lease income $ 307 $ 329 $ 978 $ 988    
Percent of operating revenue 7.00% 7.00% 7.00% 7.00%    
Revenue recognized $ 47 $ 61 $ 494 $ 544    
Contract liabilities         $ 841 $ 950
Minimum            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Contract term     1 year      
Maximum            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Contract term     5 years      
Weighted Average | Consumer Customers            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Length of customer life     32 months      
Weighted Average | Business Customers            
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]            
Length of customer life     30 months