CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Jan. 30, 2020
Statement of Stockholders' Equity [Abstract]
Dividends Declared per Common Share	$ 0.40	$ 0.30
Accelerate Share Repurchase
Accelerated share repurchases
Accelerated share repurchases settlement receipt		$ 250	$ 500