Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Amount, after tax, of accumulated increase (decrease) in equity from transaction and other event and circumstance from nonowner source.

+ References + Details

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Equity (Changes in Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 31:		$ (670.8)		$ (766.2)	$ (670.8)	$ (766.2)
Other comprehensive income (loss)	$ (32.2)	(76.8)	$ (44.5)	67.4	(109.0)	22.9
Balance at June 30:	(778.4)		(743.4)		(778.4)	(743.4)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(35.1)		(37.5)		(111.7)	23.9
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 31:		(474.9)		(547.6)	(474.9)	(547.6)
Other comprehensive income (loss)					(110.3)	23.8
Balance at June 30:	(585.2)		(523.8)		(585.2)	(523.8)
Accumulated other comprehensive income (loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	(32.1)	(75.5)	(44.1)	66.9	(107.6)	22.8
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 31:		3.0		(4.5)	3.0	(4.5)
Other comprehensive income (loss)					0.1	(1.2)
Balance at June 30:	3.1		(5.7)		3.1	(5.7)
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at December 31:		(198.9)		(214.1)	(198.9)	(214.1)
Other comprehensive income (loss)					2.6	0.2
Balance at June 30:	(196.3)		(213.9)		(196.3)	(213.9)
Noncontrolling Interests
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss)	$ (0.1)	$ (1.3)	$ (0.4)	$ 0.5
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax					$ (1.4)	$ 0.1