Equity and Accumulated Other Comprehensive Earnings (Loss) - AOCI Activity (Details) $ in Millions	3 Months Ended
	Mar. 31, 2024 USD ($)
Accumulated Other Comprehensive Earnings (Loss)
Balance at beginning of the period	$ 3,837
Balance at end of the period	7,377
Currency Translation (Net of Tax)
Accumulated Other Comprehensive Earnings (Loss)
Balance at beginning of the period	(380)
Other comprehensive earnings (loss) before reclassifications	(87)
Balance at end of the period	(467)
Pension and Other Postretirement Benefits (Net of Tax)
Accumulated Other Comprehensive Earnings (Loss)
Balance at beginning of the period	(537)
Other comprehensive earnings (loss) before reclassifications	8
Amounts reclassified into earnings	3
Aerospace disposal	94
Balance at end of the period	(432)
Derivatives Designated as Hedges (Net of Tax)
Accumulated Other Comprehensive Earnings (Loss)
Balance at beginning of the period	1
Other comprehensive earnings (loss) before reclassifications	31
Amounts reclassified into earnings	(26)
Balance at end of the period	6
Accumulated Other Comprehensive Earnings (Loss).
Accumulated Other Comprehensive Earnings (Loss)
Balance at beginning of the period	(916)
Other comprehensive earnings (loss) before reclassifications	(48)
Amounts reclassified into earnings	(23)
Aerospace disposal	94
Balance at end of the period	$ (893)