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United Kingdom Energy Crisis and Impairment Charges (Details) - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Impaired Long-Lived Assets Held and Used [Line Items]
Goodwill and Intangible Asset Impairment		$ 495	$ 521
Long-lived and intangible asset impairment		236	236	$ 0	$ 0
Goodwill impairment	$ 26	$ 259	285	$ 0	$ 0
UNITED KINGDOM
Impaired Long-Lived Assets Held and Used [Line Items]
Long-lived and intangible asset impairment			50
Long-Lived Assets	$ 425		$ 425

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- Definition

Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

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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.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of a finite-lived intangible asset to fair value.

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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