Pension And Other Benefit Programs (Schedule Of Amounts In Accumulated Other Comprehensive) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	$ (540.7)	$ (577.3)
Accumulated other comprehensive (loss) income	(540.7)	(577.3)
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Net actuarial (loss) gain	32.8	59.3
Prior service (cost) credit	2.0	1.1
Accumulated other comprehensive (loss) income	$ 34.8	$ 60.4

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
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Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
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-Section 50
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Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 14A
-URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580

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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.

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