Summarized Quarterly Financial Data (unaudited)
|12 Months Ended|
Dec. 31, 2017
|Quarterly Financial Information Disclosure [Abstract]|
|Summarized Quarterly Financial Data (unaudited)||
Summarized Quarterly Financial Data—(in millions, except per unit amounts)
The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information.
Reference 1: http://www.xbrl.org/2003/role/presentationRef