Employee Benefit Plans - Net Periodic Benefit Cost and Other Changes in Plan Assets and Benefit Obligations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Components of Net Periodic Benefit Costs:
Defined benefit plans			$ 10	$ (11)
Pension Benefits | U.S. Plans
Components of Net Periodic Benefit Costs:
Service cost	$ 0	$ 1	0	1
Interest cost	27	24	54	44
Expected return on plan assets	(24)	(24)	(49)	(51)
Recognized net actuarial loss (gain)	4	3	7	7
Amortization of prior service cost (credit)	0	0	0	0
Recognized settlement loss	7	15	12	33
Defined benefit plans	14	19	24	34
Defined contribution plans	5	5	9	10
Net Periodic Benefit Cost (Credit)	19	24	33	44
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss):
Net actuarial (gain) loss	44	(7)	37	7
Prior service cost (credit)	0	0	0	0
Amortization of net actuarial (loss) gain	(11)	(18)	(19)	(40)
Amortization of net prior service (cost) credit	0	0	0	0
Total Recognized in Other Comprehensive Income (Loss)	33	(25)	18	(33)
Total Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive Income (Loss)	52	(1)	51	11
Pension Benefits | Non-U.S. Plans
Components of Net Periodic Benefit Costs:
Service cost	1	4	2	8
Interest cost	47	33	93	62
Expected return on plan assets	(51)	(59)	(107)	(114)
Recognized net actuarial loss (gain)	4	6	5	12
Amortization of prior service cost (credit)	2	0	3	0
Recognized settlement loss	0	0	0	0
Defined benefit plans	3	(16)	(4)	(32)
Defined contribution plans	4	4	10	8
Net Periodic Benefit Cost (Credit)	7	(12)	6	(24)
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss):
Net actuarial (gain) loss	(48)	31	(48)	31
Prior service cost (credit)	36	48	36	48
Amortization of net actuarial (loss) gain	(4)	(6)	(5)	(12)
Amortization of net prior service (cost) credit	(2)	0	(3)	0
Total Recognized in Other Comprehensive Income (Loss)	(18)	73	(20)	67
Total Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive Income (Loss)	(11)	61	(14)	43
Retiree Health
Components of Net Periodic Benefit Costs:
Service cost	0	1	0	1
Interest cost	2	2	5	4
Expected return on plan assets	0	0	0	0
Recognized net actuarial loss (gain)	(4)	(1)	(6)	(1)
Amortization of prior service cost (credit)	(3)	(3)	(7)	(7)
Recognized settlement loss	0	0	0	0
Defined benefit plans	(5)	(1)	(8)	(3)
Net Periodic Benefit Cost (Credit)	(5)	(1)	(8)	(3)
Other Changes in Plan Assets and Benefit Obligations Recognized in Other Comprehensive Income (Loss):
Net actuarial (gain) loss	(5)	0	(5)	(7)
Prior service cost (credit)	0	0	0	(23)
Amortization of net actuarial (loss) gain	4	1	6	1
Amortization of net prior service (cost) credit	3	3	7	7
Total Recognized in Other Comprehensive Income (Loss)	2	4	8	(22)
Total Recognized in Net Periodic Benefit Cost (Credit) and Other Comprehensive Income (Loss)	$ (3)	$ 3	$ 0	$ (25)