Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Interest paid	$ 129	$ 81	$ 18
Income taxes paid	552	561	632
UTC
Interest paid	0	0	18
Income taxes paid	$ 0	$ (15)	$ 255