Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt and Borrowing Arrangements (Schedule of Available Capacity Under Borrowing Arrangements) (Details)

v3.19.1
Long-Term Debt and Borrowing Arrangements (Schedule of Available Capacity Under Borrowing Arrangements) (Details) - $750 million revolving credit facility (due May 2023)
Mar. 31, 2019
USD ($)
Debt Instrument [Line Items]  
Total capacity $ 750,000,000
Less: Letters of credit 15,000,000
Available capacity $ 735,000,000