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Business, Basis of Presentation and Significant Accounting Policies (Accounting Pronouncements Adopted) (Narrative) (Details)
Jun. 30, 2020
ASU 2018-15 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Change in Accounting Principle, Accounting Standards Update, Adoption Date Jan. 01, 2020
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] true
ASU 2018-13 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Change in Accounting Principle, Accounting Standards Update, Adoption Date Jan. 01, 2020
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] true
ASU 2016-13 [Member]  
New Accounting Pronouncements or Change in Accounting Principle [Line Items]  
Change in Accounting Principle, Accounting Standards Update, Adoption Date Jan. 01, 2020
Change in Accounting Principle, Accounting Standards Update, Adopted [true false] true
Change in Accounting Principle, Accounting Standards Update, Immaterial Effect [true false] true