Information by Segment and Geographic Region - Corporate Related Expenses and Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting Information [Line Items]
Capital Expenditures	$ 243	$ 217	$ 248
Depreciation Expense	202	194	186
Products and Systems Integration
Segment Reporting Information [Line Items]
Capital Expenditures	90	91	98
Depreciation Expense	87	90	82
Software and Services
Segment Reporting Information [Line Items]
Capital Expenditures	153	126	150
Depreciation Expense	$ 115	$ 104	$ 104