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Goodwill and Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule of goodwill balances and adjustments
The following table presents goodwill activity for the periods indicated (in millions):
 December 31,
2019		Goodwill
Acquired		 Adjustments December 31,
2020		Goodwill
Acquired		 Adjustments December 31,
2021
Goodwill$4,155 $— $130 $4,285 $22 $(129)$4,178