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Goodwill
 6 Months Ended
Jun. 30, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Goodwill
Goodwill

The following table presents goodwill activity during the six months ended June 30, 2021 (in millions):
 December 31,
2020		Goodwill
Acquired		 Adjustments June 30,
2021
Goodwill$4,285 $— $(73)$4,212 
The adjustments to goodwill during the six months ended June 30, 2021 were primarily due to foreign currency translation.