Other Income, Net (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Other Income and Expenses [Abstract]
Gain/(loss) on disposal of operations	[1]	$ 22	$ (2)	$ (32)	$ 357
Net periodic pension and postretirement benefit credits		69	72	140	148
Interest in earnings of associates and other investments		2	2	4	4
Foreign exchange (loss)/gain		(1)	2	5	3
Other		1	0	3	0
Other income, net		$ 93	$ 74	$ 120	$ 512

[1] For both the three and six months ended June 30, 2022, includes a $24 million non-cash revaluation gain related to an acquisition completed in stages.