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Nature of Operations and Basis of Presentation - Narrative (Details) $ in Millions		3 Months Ended		6 Months Ended
	May 02, 2023 USD ($)	Jun. 30, 2023 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) segment	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Number of reportable segments | segment				6
Pre-tax gain (loss) on sale		$ (119)	$ 556	$ (69)	$ 1,899
Restricted cash		1		1		$ 1
Contract asset		97		97		60
Unearned revenue				2,000
Capitalized contract costs		$ 194		$ 194		$ 175
Amortization period of capitalized contract cost		5 years		5 years
OSTTRA | Corporate Joint Venture
Business Acquisition [Line Items]
Investment in joint venture percentage		50.00%		50.00%
Noncontrolling interest ownership by noncontrolling owners percentage		50.00%		50.00%
Sale | Engineering Solutions Business
Business Acquisition [Line Items]
Divestiture consideration	$ 975
Proceeds from divestiture of business	$ 750
Pre-tax gain (loss) on sale		$ (120)		$ (120)
Disposition related costs		3		16
Gain (loss) on disposition after tax		(189)		(182)
Release of deferred tax liabilities		$ 101		$ 157

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