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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 |  |  |

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