Restructuring (Tables)

12 Months Ended

Dec. 31, 2020

Restructuring and Related Activities [Abstract]

Schedule of Initial Restructuring Charge Recorded and the Ending Reserve Balance

The initial restructuring charge recorded and the ending reserve balance as of December 31, 2020 by segment is as follows:

	2020 Restructuring Plan				2019 Restructuring Plan
(in millions)	Initial Charge Recorded		Ending Reserve Balance		Initial Charge Recorded		Ending Reserve Balance
Ratings	$	4	$	3	$	11	$	1
Market Intelligence	27		26		6		3
Platts	10		10		1		—
Indices	5		4		—		—
Corporate	19		15		7		1
Total	$	65	$	58	$	25	$	5