Balance Sheets (Unaudited) - MEC - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 3,744	$ 1,565
Inventories	1,605	1,509
Other current assets	1,295	1,355
Total current assets	12,232	10,198
Regulatory assets	4,204	4,167
Investments and restricted cash and cash equivalents and investments	9,305	9,510
Other assets	3,115	3,170
Total assets	140,235	137,840
Current liabilities:
Accounts payable	2,602	3,175
Accrued interest	752	625
Accrued property, income and other taxes	756	828
Short-term debt	1,528	4,148
Current portion of long-term debt	3,133	2,740
Other current liabilities	1,942	1,551
Total current liabilities	11,094	13,421
Regulatory liabilities	6,709	6,644
Deferred income taxes	12,343	12,437
Other long-term liabilities	5,935	6,166
Total liabilities	89,976	88,100
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	5,573	5,573
Retained earnings	45,417	44,765
Total shareholder's equity	48,959	48,434
Total liabilities and equity	140,235	137,840
MEC
Current assets:
Cash and cash equivalents	659	636
Trade receivables, net	275	272
Income tax receivable	83	1
Inventories	358	364
Prepaid expenses	135	113
Other current assets	48	39
Total current assets	1,558	1,425
Property, plant and equipment, net	22,085	21,970
Regulatory assets	621	600
Investments and restricted cash and cash equivalents and investments	1,084	1,030
Other assets	187	210
Total assets	25,535	25,235
Current liabilities:
Accounts payable	387	543
Accrued interest	100	106
Accrued property, income and other taxes	144	197
Short-term debt	15	0
Current portion of long-term debt	552	539
Other current liabilities	110	102
Total current liabilities	1,308	1,487
Long-term debt	8,807	8,227
Regulatory liabilities	1,153	1,079
Deferred income taxes	3,505	3,494
Asset retirement obligations	775	768
Other long-term liabilities	572	577
Total liabilities	16,120	15,632
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	561	561
Retained earnings	8,854	9,042
Total shareholder's equity	9,415	9,603
Total liabilities and equity	$ 25,535	$ 25,235