Consolidated Statements of Stockholders' Equity (Parenthetical) shares in Millions		12 Months Ended
	Sep. 15, 2015 shares	Dec. 31, 2015 shares
Stock dividend, common stock shares issued		81.7
Stock split of common stock	2
Common Stock [Member]
Stock dividend, common stock shares issued	81.7
Stock split of common stock	2	2