Stock-Based Compensation	9 Months Ended
	Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	Stock-Based CompensationWe issue stock-based incentive awards to our eligible employees under the 2019 Stock Incentive Plan (“2019 Plan”) and to our eligible non-employee Directors under a Director Deferred Stock Ownership Plan. The 2019 Plan permits the granting of incentive stock options, nonqualified stock options, stock appreciation rights, performance stock, restricted stock and other stock-based awards.Total stock-based compensation expense primarily related to restricted stock and unit awards was $160 million for the nine months ended September 30, 2022, and $90 million for the nine months ended September 30, 2021. Stock-based compensation expense primarily related to the early vesting of IHS Markit equity awards as a result of employee terminations and restructuring efforts. During the nine months ended September 30, 2022, the Company granted 0.7 million shares of restricted stock and unit awards, which had a weighted average grant date fair value of $388.21 per share. Total unrecognized compensation expense related to unvested restricted stock and unit awards as of September 30, 2022 was $173 million, which is expected to be recognized over a weighted average period of 1.6 years.