Goodwill

The following table provides a roll-forward of the Goodwill balance for the six months ended June 30, 2018 and 2017:



(In millions)	2018			2017
As of January 1,	$	19,831.7		$	17,888.2
Acquisitions	—			1,076.2
Reclassification to assets held for sale	(565.1		)	—
Foreign currency translation and other	(222.9		)	517.7
June 30,	$	19,043.7		$	19,482.1

The increase in Goodwill during the six months ended June 30, 2017 related to measurement period adjustments of the acquisition of Baxalta.

For further details regarding the reclassification of Goodwill to assets held for sale, refer to Note 4, Dispositions and Assets Held for Sale.