Nature of Operations and Basis of Presentation (Tables)

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of Revenue Disaggregated by Revenue Type

The following table presents our revenue disaggregated by revenue type:

(in millions)	Ratings		Market Intelligence		Platts		Indices		Corporate		Intersegment Elimination 1			Total
	Three Months Ended June 30, 2018
Subscription	$	—	$	431	$	188	$	36	$	5	$	—		$	660
Non-transaction	378		—		—		—		—		(32		)	346
Non-subscription / Transaction	397		11		4		—		—		—			412
Asset-linked fees	—		5		—		135		—		—			140
Sales usage-based royalties	—		—		13		38		—		—			51
Total revenue	$	775	$	447	$	205	$	209	$	5	$	(32	)	$	1,609
Timing of revenue recognition
Services transferred at a point in time	$	397	$	11	$	4	$	—	$	—	$	—		$	412
Services transferred over time	378		436		201		209		5		(32		)	1,197
Total revenue	$	775	$	447	$	205	$	209	$	5	$	(32	)	$	1,609
	Six Months Ended June 30, 2018
Subscription	$	—	$	854	$	369	$	69	$	5	$	—		$	1,297
Non-transaction	757		—		—		—		—		(60		)	697
Non-subscription / Transaction	766		20		6		—		—		—			792
Asset-linked fees	—		10		—		265		—		—			275
Sales usage-based royalties	—		—		26		89		—		—			115
Total revenue	$	1,523	$	884	$	401	$	423	$	5	$	(60	)	$	3,176
Timing of revenue recognition
Services transferred at a point in time	$	766	$	20	$	6	$	—	$	—	$	—		$	792
Services transferred over time	757		864		395		423		5		(60		)	2,384
Total revenue	$	1,523	$	884	$	401	$	423	$	5	$	(60	)	$	3,176

(in millions)	Ratings		Market Intelligence		Platts		Indices		Corporate		Intersegment Elimination 1			Total
	Three Months Ended June 30, 2017 2
Subscription	$	—	$	397	$	174	$	37	$	—	$	—		$	608
Non-transaction	353		—		—		—		—		(28		)	325
Non-subscription / Transaction	394		11		4		—		—		—			409
Asset-linked fees	—		6		—		114		—		—			120
Sales usage-based royalties	—		—		14		33		—		—			47
Total revenue	$	747	$	414	$	192	$	184	$	—	$	(28	)	$	1,509
Timing of revenue recognition
Services transferred at a point in time	$	394	$	11	$	4	$	—	$	—	$	—		$	409
Services transferred over time	353		403		188		184		—		(28		)	1,100
Total revenue	$	747	$	414	$	192	$	184	$	—	$	(28	)	$	1,509
	Six Months Ended June 30, 2017 2
Subscription	$	—	$	783	$	346	$	68	$	—	$	—		$	1,197
Non-transaction	694		—		—		—		—		(53		)	641
Non-subscription / Transaction	767		22		7		—		—		—			796
Asset-linked fees	—		11		—		222		—		—			233
Sales usage-based royalties	—		—		30		65		—		—			95
Total revenue	$	1,461	$	816	$	383	$	355	$	—	$	(53	)	$	2,962
Timing of revenue recognition
Services transferred at a point in time	$	767	$	22	$	7	$	—	$	—	$	—		$	796
Services transferred over time	694		794		376		355		—		(53		)	2,166
Total revenue	$	1,461	$	816	$	383	$	355	$	—	$	(53	)	$	2,962

¹  Intersegment eliminations mainly consists of a royalty charged to Market Intelligence for the rights to use and distribute content and data developed by Ratings.

²  As noted above, amounts for the three and six months ended June 30, 2017 were not adjusted under the modified retrospective transition method applied to our revenue contracts with customers as of January 1, 2018.

Schedule of Components of Other (Income) Expense, Net [Table Text Block]

The components of other income, net for the three and six months ended June 30 are as follows:

(in millions)	Three Months						Six Months
	2018			2017			2018			2017
Other components of net periodic benefit cost	$	(8	)	$	(9	)	$	(16	)	$	(18	)
Net gain from investments 1	(3		)	—			—			—
Other income, net	$	(11	)	$	(9	)	$	(16	)	$	(18	)

¹  Primarily relates to the change in fair value of CRISIL's investment in Care Ratings Limited ("CARE"). The investment balance of CARE as of June 30, 2018 and December 31, 2017 is $48 million and $54 million, respectively, and is included in non-current assets in our consolidated balance sheets.