Retirement Plans and Other Retiree Benefits (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Employee-Related Costs  | Global Productivity Initiative
Components of net periodic benefit cost
Other postretirement charges	$ 19
Other Retiree Benefits
Components of net periodic benefit cost
Service cost	5	$ 6
Interest cost	10	9
Expected return on plan assets	0	0
Amortization of actuarial loss (gain)	5	6
Net periodic benefit cost	20	21
Other postretirement charges	8	0
Total pension cost	28	21
United States | Pension Benefits
Components of net periodic benefit cost
Service cost	0	0
Interest cost	16	15
Expected return on plan assets	(25)	(27)
Amortization of actuarial loss (gain)	11	13
Net periodic benefit cost	2	1
Other postretirement charges	9	0
Total pension cost	11	1
Voluntary benefit plan contribution	0	0
International | Pension Benefits
Components of net periodic benefit cost
Service cost	5	4
Interest cost	6	5
Expected return on plan assets	(6)	(6)
Amortization of actuarial loss (gain)	2	3
Net periodic benefit cost	7	6
Other postretirement charges	2	0
Total pension cost	$ 9	$ 6