Long-Term Debt (Tables)

12 Months Ended

Dec. 31, 2016

Debt Disclosure [Abstract]

Schedule Of Long-Term Debt Instruments

The disclosures below include details of the company's debt. Debt of CIP is detailed in Note 20, “Consolidated Investment Products.”

	December 31, 2016		December 31, 2015
$ in millions	Carrying Value**	Fair Value	Carrying Value**	Fair Value
Floating rate credit facility expiring August 7, 2020	28.7	28.7	—	—
Unsecured Senior Notes*:
$600 million 3.125% - due November 30, 2022	596.3	604.7	596.1	601.4
$600 million 4.000% - due January 30, 2024	593.2	625.3	592.7	628.3
$500 million 3.750% - due January 15, 2026	494.5	506.4	494.2	503.0
$400 million 5.375% - due November 30, 2043	389.7	441.4	389.8	428.6
Long-term debt	2,102.4	2,206.5	2,072.8	2,161.3

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* The company's senior note indentures contain certain restrictions on mergers or consolidations. Beyond these items, there are no other restrictive covenants in the indentures.

** The difference between the principal amounts and the carrying values of the senior notes in the table above reflect the unamortized debt issuance costs and discounts.

Analysis Of Borrowings By Maturity

Analysis of Borrowings by Maturity:

$ in millions	December 31, 2016
2020	28.7
2022	596.3
2024	593.2
2026	494.5
2043	389.7
Long-term debt	2,102.4