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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Statement of Comprehensive Income [Abstract]    
Net income $ 639 $ 1,049
Other comprehensive income (loss), net of tax    
Change in fair value of derivatives, net of tax of $22 and $(7), respectively (75) 23
Derivative amounts reclassified to net income, net of tax of $6 and $3, respectively (21) (12)
Changes in benefit plan obligations and other, net of tax of $$— and $$1, respectively 1 (2)
Total other comprehensive income (loss), net of tax (95) 9
Comprehensive income $ 544 $ 1,058