Segment and Related Information - Revenue Disaggregated by Type (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 3,160	$ 2,389
Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	598	512
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	2,562	1,877
Subscription
Disaggregation of Revenue [Line Items]
Total revenue	1,740	1,125
Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	598	512
Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	403	425
Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	210	218
Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	84	69
Recurring variable revenue
Disaggregation of Revenue [Line Items]
Total revenue	125	40
Operating Segments | Market Intelligence
Disaggregation of Revenue [Line Items]
Total revenue	1,071	727
Operating Segments | Market Intelligence | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	56	28
Operating Segments | Market Intelligence | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	1,015	699
Operating Segments | Market Intelligence | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	890	659
Operating Segments | Market Intelligence | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	56	28
Operating Segments | Market Intelligence | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Market Intelligence | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Market Intelligence | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Market Intelligence | Recurring variable revenue
Disaggregation of Revenue [Line Items]
Total revenue	125	40
Operating Segments | Ratings
Disaggregation of Revenue [Line Items]
Total revenue	824	868
Operating Segments | Ratings | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	379	404
Operating Segments | Ratings | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	445	464
Operating Segments | Ratings | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Ratings | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	379	404
Operating Segments | Ratings | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	445	464
Operating Segments | Ratings | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Ratings | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Ratings | Recurring variable revenue
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Commodity Insights
Disaggregation of Revenue [Line Items]
Total revenue	508	363
Operating Segments | Commodity Insights | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	80	48
Operating Segments | Commodity Insights | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	428	315
Operating Segments | Commodity Insights | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	409	296
Operating Segments | Commodity Insights | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	80	48
Operating Segments | Commodity Insights | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Commodity Insights | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Commodity Insights | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	19	19
Operating Segments | Commodity Insights | Recurring variable revenue
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Mobility
Disaggregation of Revenue [Line Items]
Total revenue	358	115
Operating Segments | Mobility | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	77	29
Operating Segments | Mobility | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	281	86
Operating Segments | Mobility | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	281	86
Operating Segments | Mobility | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	77	29
Operating Segments | Mobility | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Mobility | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Mobility | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Mobility | Recurring variable revenue
Disaggregation of Revenue [Line Items]
Total revenue	0
Operating Segments | Indices
Disaggregation of Revenue [Line Items]
Total revenue	341	322
Operating Segments | Indices | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Indices | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	341	322
Operating Segments | Indices | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	66	54
Operating Segments | Indices | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Indices | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Indices | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	210	218
Operating Segments | Indices | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	65	50
Operating Segments | Indices | Recurring variable revenue
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Engineering Solutions
Disaggregation of Revenue [Line Items]
Total revenue	100	33
Operating Segments | Engineering Solutions | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	6	3
Operating Segments | Engineering Solutions | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	94	30
Operating Segments | Engineering Solutions | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	94	30
Operating Segments | Engineering Solutions | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	6	3
Operating Segments | Engineering Solutions | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Engineering Solutions | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Engineering Solutions | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Engineering Solutions | Recurring variable revenue
Disaggregation of Revenue [Line Items]
Total revenue	0
Intersegment Elimination
Disaggregation of Revenue [Line Items]
Total revenue	(42)	(39)
Intersegment Elimination | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Intersegment Elimination | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	(42)	(39)
Intersegment Elimination | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Intersegment Elimination | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Intersegment Elimination | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	(42)	(39)
Intersegment Elimination | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Intersegment Elimination | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Intersegment Elimination | Recurring variable revenue
Disaggregation of Revenue [Line Items]
Total revenue		$ 0