Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2024

Fair Value Disclosures [Abstract]

Fair Value Measurements, Recurring and Nonrecurring

Assets and liabilities measured at fair value as of March 31, 2024, were as follows:

	Fair value measurements						Total fair value
In millions	Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Recurring fair value measurements
Assets:
Investments	$	—	$	15.8	$	—	$	15.8
Total asset recurring fair value measurements	$	—	$	15.8	$	—	$	15.8
Liabilities:
Deferred compensation and other retirement plans	$	—	$	16.0	$	—	$	16.0
Total liability recurring fair value measurements	$	—	$	16.0	$	—	$	16.0
Financial instruments not carried at fair value
Total debt	$	—	$	1,966.8	$	—	$	1,966.8
Total financial instruments not carried at fair value	$	—	$	1,966.8	$	—	$	1,966.8

Assets and liabilities measured at fair value as of December 31, 2023, were as follows:

	Fair value measurements						Total fair value
In millions	Quoted prices in active markets for identical assets (Level 1)		Significant other observable inputs (Level 2)		Significant unobservable inputs (Level 3)
Recurring fair value measurements
Assets:
Investments	$	—	$	18.0	$	—	$	18.0
Total asset recurring fair value measurements	$	—	$	18.0	$	—	$	18.0
Liabilities:
Deferred compensation and other retirement plans	$	—	$	18.2	$	—	$	18.2
Total liability recurring fair value measurements	$	—	$	18.2	$	—	$	18.2
Financial instruments not carried at fair value
Total debt	$	—	$	1,984.9	$	—	$	1,984.9
Total financial instruments not carried at fair value	$	—	$	1,984.9	$	—	$	1,984.9