Goodwill Impairment and Carrying Value (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Feb. 12, 2010
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 14,852,000,000	$ 14,851,000,000		$ 14,800,000,000
Incurred impairment losses related to Goodwill	0	0	$ 0
Accumulated impairment losses related to Goodwill	$ 0	$ 0

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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