Pension And Other Benefit Programs (Schedule Of Net Funded Status) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation as of beginning of period	$ 1,918.1	$ 2,069.9
Service cost	10.1	16.3	$ 14.4
Interest cost	69.8	80.9	85.7
Actuarial loss (gain)	0.6	(130.5)
Benefits paid	(111.0)	(118.5)
Separation of AFI	(365.2)
Benefit obligation as of end of period	1,522.4	1,918.1	2,069.9
Fair value of plan assets as of beginning of period	1,837.2	1,986.3
Actual return on plan assets	144.7	(34.2)
Employer contribution	4.2	3.6
Separation of AFI	(362.2)
Fair value of plan assets as of end of period	1,512.9	1,837.2	1,986.3
Funded status of the plans	(9.5)	(80.9)
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation as of beginning of period	234.0	261.4
Service cost	2.2	2.4	2.5
Interest cost	6.9	8.3	10.5
Plan participants' contributions	0.1	0.1
Settlements and curtailments	0.2
Foreign currency translation adjustment	(35.6)	(16.5)
Actuarial loss (gain)	37.1	(6.7)
Benefits paid	(9.4)	(15.0)
Separation of AFI	(20.5)
Benefit obligation as of end of period	215.0	234.0	261.4
Fair value of plan assets as of beginning of period	210.9	232.4
Actual return on plan assets	40.8	3.3
Employer contribution	2.9	3.4
Foreign currency translation adjustment	(35.3)	(13.3)
Separation of AFI	(19.6)
Fair value of plan assets as of end of period	190.4	210.9	232.4
Funded status of the plans	(24.6)	(23.1)
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefit obligation as of beginning of period	190.3	221.4
Service cost	0.4	0.9	0.9
Interest cost	4.7	8.1	10.9
Plan participants' contributions	3.2	4.6
Actuarial loss (gain)	(7.7)	(22.7)
Benefits paid	(11.5)	(22.0)
Separation of AFI	(86.3)
Benefit obligation as of end of period	93.1	190.3	221.4
Fair value of plan assets as of beginning of period	0.0	0.0
Employer contribution	8.3	17.4
Fair value of plan assets as of end of period	0.0	0.0	$ 0.0
Funded status of the plans	$ (93.1)	$ (190.3)