Consolidated Statements of Cash Flows (Unaudited) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 133 $ 124
Adjustments to reconcile to net cash flows provided by operating activities:    
Depreciation and amortization 157 145
Deferred income taxes and amortization of investment tax credits 26 38
Provision for losses on accounts receivable 11 6
Pension and non-pension postretirement benefits (10) (1)
Other non-cash, net (41) (18)
Changes in assets and liabilities:    
Receivables and unbilled revenues 26 (4)
Pension and postretirement benefit contributions (9) (10)
Accounts payable and accrued liabilities (57) (91)
Other assets and liabilities, net (57) (9)
Net cash provided by operating activities 179 180
CASH FLOWS FROM INVESTING ACTIVITIES    
Capital expenditures (342) (408)
Acquisitions, net of cash acquired (3) (21)
Proceeds from sale of assets 0 2
Removal costs from property, plant and equipment retirements, net (18) (23)
Net cash used in investing activities (363) (450)
CASH FLOWS FROM FINANCING ACTIVITIES    
Proceeds from long-term debt 2 8
Repayments of long-term debt (25) (6)
(Repayments of) proceeds from term loan (500) 500
Net proceeds from revolving credit facility borrowings 0 215
Net short-term borrowings with maturities less than three months 334 139
Proceeds from issuances of employee stock plans and direct stock purchase plan, net of taxes paid of $15 and $11 for the three months ended March 31, 2021 and 2020, respectively (11) (5)
Advances and contributions for construction, net of refunds of $6 and $8 for the three months ended March 31, 2021 and 2020, respectively 7 7
Dividends paid (100) (90)
Net cash (used in) provided by financing activities (293) 768
Net (decrease) increase in cash, cash equivalents and restricted funds (477) 498
Cash, cash equivalents and restricted funds at beginning of period 576 91
Cash, cash equivalents and restricted funds at end of period 99 589
Non-cash investing activity:    
Capital expenditures acquired on account but unpaid as of the end of period $ 223 $ 256