Acquisitions & Divestitures - (Details) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2021
USD ($)
item
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Dec. 31, 2020
USD ($)
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Dec. 31, 2019 |
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| Acquisitions | |||
| Restricted Cash | $ 307 | $ 463 | |
| Acquisitions 2021, 2020, and 2019 | |||
| Acquisitions | |||
| Percentage of business acquired (as a percent) | 100.00% | 100.00% | 100.00% |
| 2021 Acquisitions | |||
| Acquisitions | |||
| Number of acquisitions | item | 15 | ||
| Aggregate acquisitions cost | $ 3,342 |
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The number of businesses acquired by the entity during the period. No definition available.
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- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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