Segment and Geographic Information - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenue	$ 12,497	$ 11,181	$ 8,297
Depreciation & Amortization	1,143	1,013	178
Capital Expenditures	143	89	35
Total Assets	60,589	61,784
Assets held for sale	0	1,298
Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	2,093	1,807	2,320
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	10,404	9,374	5,977
Subscription
Disaggregation of Revenue [Line Items]
Total revenue	6,963	6,201	3,255
Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	2,093	1,807	2,320
Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	1,730	1,640	1,698
Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	859	862	800
Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	348	286	224
Recurring variable
Disaggregation of Revenue [Line Items]
Total revenue	504	385
Operating Segments
Disaggregation of Revenue [Line Items]
Depreciation & Amortization	1,129	992	159
Capital Expenditures	139	82	34
Total Assets	56,178	56,359
Operating Segments | Market Intelligence
Disaggregation of Revenue [Line Items]
Total revenue	4,376	3,811	2,185
Depreciation & Amortization	597	509	91
Capital Expenditures	73	43	12
Total Assets	29,674	29,852
Operating Segments | Market Intelligence | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	187	163	54
Operating Segments | Market Intelligence | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	4,189	3,648	2,131
Operating Segments | Market Intelligence | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	3,685	3,263	2,131
Operating Segments | Market Intelligence | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	187	163	54
Operating Segments | Market Intelligence | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Market Intelligence | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Market Intelligence | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Market Intelligence | Recurring variable
Disaggregation of Revenue [Line Items]
Total revenue	504	385
Operating Segments | Ratings
Disaggregation of Revenue [Line Items]
Total revenue	3,332	3,050	4,097
Depreciation & Amortization	37	46	46
Capital Expenditures	24	23	18
Total Assets	1,041	1,039
Operating Segments | Ratings | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	1,425	1,241	2,253
Operating Segments | Ratings | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	1,907	1,809	1,844
Operating Segments | Ratings | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Ratings | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	1,425	1,241	2,253
Operating Segments | Ratings | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	1,907	1,809	1,844
Operating Segments | Ratings | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Ratings | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Ratings | Recurring variable
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Commodity Insights
Disaggregation of Revenue [Line Items]
Total revenue	1,946	1,685	1,012
Depreciation & Amortization	137	115	12
Capital Expenditures	7	4	2
Total Assets	8,746	8,781
Operating Segments | Commodity Insights | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	158	126	13
Operating Segments | Commodity Insights | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	1,788	1,559	999
Operating Segments | Commodity Insights | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	1,707	1,492	933
Operating Segments | Commodity Insights | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	158	126	13
Operating Segments | Commodity Insights | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Commodity Insights | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Commodity Insights | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	81	67	66
Operating Segments | Commodity Insights | Recurring variable
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Mobility
Disaggregation of Revenue [Line Items]
Total revenue	1,484	1,142	0
Depreciation & Amortization	314	248	0
Capital Expenditures	22	6	0
Total Assets	13,495	13,416
Operating Segments | Mobility | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	315	254	0
Operating Segments | Mobility | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	1,169	888	0
Operating Segments | Mobility | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	1,169	888	0
Operating Segments | Mobility | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	315	254	0
Operating Segments | Mobility | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Mobility | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Mobility | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Mobility | Recurring variable
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Indices
Disaggregation of Revenue [Line Items]
Total revenue	1,403	1,339	1,149
Depreciation & Amortization	42	39	10
Capital Expenditures	13	2	2
Total Assets	3,222	3,271
Operating Segments | Indices | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Indices | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	1,403	1,339	1,149
Operating Segments | Indices | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	277	258	191
Operating Segments | Indices | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Indices | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Indices | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	859	862	800
Operating Segments | Indices | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	267	219	158
Operating Segments | Indices | Recurring variable
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Operating Segments | Engineering Solutions
Disaggregation of Revenue [Line Items]
Total revenue	133	323	0
Depreciation & Amortization	2	35	0
Capital Expenditures	0	4	0
Total Assets	0	0
Operating Segments | Engineering Solutions | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	8	23	0
Operating Segments | Engineering Solutions | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	125	300	0
Operating Segments | Engineering Solutions | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	125	300	0
Operating Segments | Engineering Solutions | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	8	23	0
Operating Segments | Engineering Solutions | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Engineering Solutions | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Engineering Solutions | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Operating Segments | Engineering Solutions | Recurring variable
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Elimination
Disaggregation of Revenue [Line Items]
Total revenue	(177)	(169)	(146)
Elimination | Services transferred at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Elimination | Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	(177)	(169)	(146)
Elimination | Subscription
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Elimination | Non-subscription / Transaction
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Elimination | Non-transaction
Disaggregation of Revenue [Line Items]
Total revenue	(177)	(169)	(146)
Elimination | Asset-linked fees
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Elimination | Sales usage-based royalties
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Elimination | Recurring variable
Disaggregation of Revenue [Line Items]
Total revenue	0	0
Corporate
Disaggregation of Revenue [Line Items]
Depreciation & Amortization	14	21	19
Capital Expenditures	4	7	$ 1
Total Assets	$ 4,411	$ 4,127