Consolidated Condensed Statements of Equity (Parenthetical) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2018
Statement of Stockholders' Equity [Abstract]
Cash dividend declared per share (in usd per share)	$ 0.74	$ 1.48	$ 1.29
Remaining authorized repurchase amount	$ 1,000	$ 1,000
Stock repurchase program, authorized amount				$ 8,000