Balance Sheets (Unaudited) - MEC - USD ($) $ in Millions	Mar. 31, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 963	$ 1,591
Inventories	1,299	1,256
Other current assets	1,202	1,345
Total current assets	11,325	11,002
Regulatory assets	3,945	3,743
Investments and restricted cash and cash equivalents and investments	10,825	11,273
Other assets	3,273	3,290
Total assets	134,454	133,840
Current liabilities:
Accounts payable	2,109	2,679
Accrued interest	701	558
Accrued property, income and other taxes	625	746
Current portion of long-term debt	3,090	3,201
Other current liabilities	1,720	1,677
Total current liabilities	10,415	10,313
Regulatory liabilities	6,578	7,070
Deferred income taxes	12,705	12,678
Other long-term liabilities	5,045	4,706
Total liabilities	82,803	83,201
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	6,298	6,298
Retained earnings	42,814	41,833
Total shareholder's equity, parent	47,853	46,832
Total liabilities and equity	134,454	133,840
MEC
Current assets:
Cash and cash equivalents	57	258
Trade receivables, net	387	536
Income tax receivable	275	42
Inventories	280	277
Prepayments	123	91
Other current assets	36	66
Total current assets	1,158	1,270
Property, plant and equipment, net	20,981	21,091
Regulatory assets	571	550
Investments and restricted cash and cash equivalents and investments	942	902
Other assets	155	165
Total assets	23,807	23,978
Current liabilities:
Accounts payable	395	536
Accrued interest	88	85
Accrued property, income and other taxes	142	170
Current portion of long-term debt	310	317
Other current liabilities	106	93
Total current liabilities	1,041	1,201
Long-term debt	7,412	7,412
Regulatory liabilities	836	1,119
Deferred income taxes	3,452	3,433
Asset retirement obligations	778	683
Other long-term liabilities	500	485
Total liabilities	14,019	14,333
Commitments and contingencies
Equity:
Common stock	0	0
Additional paid-in capital	561	561
Retained earnings	9,227	9,084
Total shareholder's equity, parent	9,788	9,645
Total liabilities and equity	$ 23,807	$ 23,978