CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	May 03, 2021	Jan. 30, 2020
Statement of Stockholders' Equity [Abstract]
Dividends Declared per Common Share	$ 0.45	$ 0.40	$ 0.85	$ 0.80
Accelerate share repurchase
Stock Repurchase Program Authorized Amount	$ 350	$ 500	$ 350	$ 500	$ 350	$ 500