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Consolidated Statements of Comprehensive Income - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net income		$ 6,379	$ 6,998	$ 6,523
Other comprehensive income/(loss):
Defined benefit plans		(106)	280	723
Foreign currency translation		58	52	(44)
Unrealized gain on derivative instruments		16	0	0
Total other comprehensive income/(loss)	[1]	(32)	332	679
Comprehensive income		$ 6,347	$ 7,330	$ 7,202
[1] Net of deferred taxes of $31 million, ($92) million, and ($237) million during 2023, 2022, and 2021, respectively.

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