Consolidated Statement of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Comprehensive income (loss):
Net income (loss)	$ 3,303	$ 2,117	$ 1,562
Designated interest rate cash flow hedging activities:
Net unrealized gain (loss) from derivative instruments, net of taxes of ($8), $1, and $14 in 2023, 2022, and 2021, respectively	26	(3)	(40)
Reclassifications into earnings of net derivative instruments (gain) loss, net of taxes of $1, $—, and ($14) in 2023, 2022, and 2021, respectively	(2)	0	41
Pension and other postretirement benefits:
Net actuarial gain (loss) arising during the year, net of taxes of $—, $1, and ($18) in 2023, 2022, and 2021, respectively	(2)	1	51
Amortization of actuarial (gain) loss and net actuarial loss from settlements included in net periodic benefit cost (credit), net of taxes of $—, ($4), and ($4) in 2023, 2022, and 2021, respectively	3	11	11
Other comprehensive income (loss)	25	9	63
Comprehensive income (loss)	3,328	2,126	1,625
Less: Comprehensive income (loss) attributable to noncontrolling interests	124	68	45
Comprehensive income (loss) attributable to The Williams Companies, Inc.	$ 3,204	$ 2,058	$ 1,580