Condensed Consolidated Statement of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Other comprehensive (income) loss, defined benefit plan, after reclassification adjustment, tax (benefit)	$ 0	$ (3)	$ 1	$ (3)
Other comprehensive income (loss), cash flow hedge, gain (loss), after reclassification, tax (benefit)	$ 27	$ 4	$ 57	$ (54)