Revenue Recognition (Contract Liabilities Rollforward) (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
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| Contract With Customer Liability Rollforward [Roll Forward] | |||
| Contract Liabilities, Beginning Balance | $ 382 | $ 448 | $ 539 |
| Additions | 273 | 247 | 223 |
| Revenue recognized | (255) | (313) | (314) |
| Contract Liabilities, Ending Balance | $ 400 | $ 382 | $ 448 |
| X | ||||||||||
- Definition Contract With Customer Liability Rollforward [Roll Forward] No definition available.
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. No definition available.
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