CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Net income	$ 659	$ 455	$ 1,316	$ 1,383
Other comprehensive income (loss):
Foreign currency translation adjustments	2	6	6
Financial instruments	63	(18)	161	89
Pension and other postretirement benefits	3	0	11	14
Total other comprehensive (loss) income	68	(12)	178	103
Comprehensive income	727	443	1,494	1,486
Preferred dividends of subsidiary	(1)	(1)	(1)	(1)
Comprehensive income, after preferred dividends of subsidiary	726	442	1,493	1,485
Pretax amount
Net income	651	584	1,608	1,637
Other comprehensive income (loss):
Foreign currency translation adjustments	2	5	5
Financial instruments	65	(14)	167	107
Pension and other postretirement benefits	4	1	13	18
Total other comprehensive (loss) income	71	(8)	185	125
Comprehensive income	722	576	1,793	1,762
Preferred dividends of subsidiary	(1)	(1)	(1)	(1)
Comprehensive income, after preferred dividends of subsidiary	721	575	1,792	1,761
Income tax (expense) benefit
Net income	(80)	(139)	(414)	(297)
Other comprehensive income (loss):
Foreign currency translation adjustments	0	0	0
Financial instruments	(17)	2	(41)	(27)
Pension and other postretirement benefits	(1)	(1)	(2)	(4)
Total other comprehensive (loss) income	(18)	1	(43)	(31)
Comprehensive income	(98)	(138)	(457)	(328)
Preferred dividends of subsidiary	0	0	0	0
Comprehensive income, after preferred dividends of subsidiary	(98)	(138)	(457)	(328)
Net-of-tax amount
Net income	571	445	1,194	1,340
Other comprehensive income (loss):
Foreign currency translation adjustments	2	5	5
Financial instruments	48	(12)	126	80
Pension and other postretirement benefits	3	0	11	14
Total other comprehensive (loss) income	53	(7)	142	94
Comprehensive income	624	438	1,336	1,434
Preferred dividends of subsidiary	(1)	(1)	(1)	(1)
Comprehensive income, after preferred dividends of subsidiary	623	437	1,335	1,433
Noncontrolling interests (after tax)
Net income	88	10	122	43
Other comprehensive income (loss):
Foreign currency translation adjustments	0	1	1
Financial instruments	15	(6)	35	9
Pension and other postretirement benefits	0	0	0	0
Total other comprehensive (loss) income	15	(5)	36	9
Comprehensive income	103	5	158	52
Preferred dividends of subsidiary	0	0	0	0
Comprehensive income, after preferred dividends of subsidiary	$ 103	$ 5	$ 158	$ 52