Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Millions	Sep. 15, 2021	Mar. 19, 2021	Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill			$ 6,039	$ 5,999	$ 4,556
RMS
Business Acquisition [Line Items]
Cash	$ 60
Accounts receivable	38
Other current assets	11
Property and equipment, net	13
Operating lease right-of-use assets	64
Total intangible assets	779
Goodwill	1,376
Deferred tax assets, net	48
Other assets	99
Liabilities:
Accounts payable and accrued liabilities	(92)
Deferred revenue	(89)
Operating lease liabilities	(68)
Deferred tax liabilities	(214)
Uncertain tax positions	(96)
Other liabilities	(2)
Total liabilities	(561)
Net assets acquired	$ 1,927
Acquired finite-lived intangible asset, useful life	18 years
RMS | Customer relationships
Business Acquisition [Line Items]
Total intangible assets	$ 518
Liabilities:
Finite-lived intangible asset, useful life	23 years
RMS | Product technology
Business Acquisition [Line Items]
Total intangible assets	$ 212
Liabilities:
Finite-lived intangible asset, useful life	7 years
RMS | Trade names
Business Acquisition [Line Items]
Total intangible assets	$ 49
Liabilities:
Finite-lived intangible asset, useful life	9 years
Cortera
Business Acquisition [Line Items]
Cash		$ 4
Accounts receivable		2
Current assets		7
Total intangible assets		57
Goodwill		79
Deferred tax assets, net		16
Other assets		2
Liabilities:
Accounts payable and accrued liabilities		(1)
Deferred revenue		(4)
Deferred tax liabilities		(15)
Other liabilities		(2)
Total liabilities		(22)
Net assets acquired		$ 139
Acquired finite-lived intangible asset, useful life		11 years
Cortera | Database
Business Acquisition [Line Items]
Total intangible assets		$ 38
Liabilities:
Finite-lived intangible asset, useful life		10 years
Cortera | Customer relationships
Business Acquisition [Line Items]
Total intangible assets		$ 9
Liabilities:
Finite-lived intangible asset, useful life		18 years
Cortera | Product technology
Business Acquisition [Line Items]
Total intangible assets		$ 9
Liabilities:
Finite-lived intangible asset, useful life		8 years
Cortera | Trade names
Business Acquisition [Line Items]
Total intangible assets		$ 1
Liabilities:
Finite-lived intangible asset, useful life		5 years