Pensions Funded Status (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Cash contributions to retirement plans	$ 34	$ 96	$ 50
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Employer Contributions in Next Fiscal Year	40
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated Employer Contributions in Next Fiscal Year	60
Pension Plans, Defined Benefit [Member] | United States
Change in Projected Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	1,302	1,302
Interest costs	23	35	45
Actuarial (gains) losses	20	44
Benefits paid	(85)	(79)
Benefit obligation at end of year	1,260	1,302	1,302
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	1,267	1,201
Actual return on plan assets	37	138
Employer contribution	7	7
Benefits paid	(85)	(79)
Fair value of plan assets at end of year	1,226	1,267	1,201
Funded status	(34)	(35)
Accumulated benefit obligation	1,260	1,302
Amounts Recognized in Balance Sheet [Abstract]
Noncurrent assets	32	38
Current liability	(7)	(8)
Noncurrent liabilities	(59)	(65)
Net amount recognized	(34)	(35)
Amounts Recognized in Accumulated Other Comprehensive Loss [Abstract]
Net actuarial loss	157	142
Net amount recognized	$ 157	$ 142
Weighted Average Assumptions Used to Determine Benefit Obligation [Abstract]
Discount rate for determining benefit obligation	2.70%	2.33%
Interest crediting rate for cash balance plans	2.58%	2.16%
Pension Plans, Defined Benefit [Member] | Foreign Plan [Member]
Change in Projected Benefit Obligation [Roll Forward]
Benefit obligation at beginning of year	$ 1,486	$ 1,303
Business Combination	170
Service costs	27	24	23
Interest costs	11	18	24
Settlements	(7)	(38)
Plan participants' contributions	6	5
Actuarial (gains) losses	(57)	119
Benefits paid	(30)	(26)
Currency translation and other	(54)	81
Benefit obligation at end of year	1,552	1,486	1,303
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of year	1,160	986
Business Combination	158
Actual return on plan assets	14	92
Employer contribution	27	87
Settlements	(7)	(38)
Plan participants' contributions	6	5
Benefits paid	(30)	(26)
Currency translation and other	(26)	54
Fair value of plan assets at end of year	1,302	1,160	$ 986
Funded status	(250)	(326)
Accumulated benefit obligation	1,475	1,417
Amounts Recognized in Balance Sheet [Abstract]
Noncurrent assets	205	157
Current liability	(10)	(9)
Noncurrent liabilities	(445)	(474)
Net amount recognized	(250)	(326)
Amounts Recognized in Accumulated Other Comprehensive Loss [Abstract]
Net actuarial loss	167	242
Prior service credits	(3)	(2)
Net amount recognized	$ 164	$ 240
Weighted Average Assumptions Used to Determine Benefit Obligation [Abstract]
Discount rate for determining benefit obligation	1.45%	0.95%
Interest crediting rate for cash balance plans	1.25%	1.25%
Average rate of increase in employee compensation	2.73%	2.30%