Stockholders' Equity (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended
	Mar. 31, 2016	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Jun. 30, 2016
Stockholders' Equity Attributable to Parent [Abstract]
Shares Issued, Price Per Share			$ 7.65
Stock Issued During Period, Shares, New Issues	166,750,000
Common Stock, issued par		$ 1		$ 1	$ 1
Stock Issued	$ 1,236