v3.6.0.2
CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income $ 1,519 $ 1,448 $ 1,262
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 1,312 1,250 1,156
Deferred income taxes and investment tax credits 217 239 146
Impairment losses 153 9 0
Plant closure (adjustment) loss 0 (26) 6
Gain on sale of assets (134) (70) (62)
Equity earnings (84) (189) (119)
Remeasurement of equity method investment (617) 0 0
Fixed-price contracts and other derivatives 21 (10) (25)
Other 63 66 108
Insurance receivable for Aliso Canyon costs (281) (325) 0
Changes in other assets 56 (162) 19
Changes in other liabilities 153 (24) 45
Changes in working capital components:      
Accounts receivable (42) (99) 44
Income taxes 3 39 62
Inventories (20) 65 (133)
Regulatory balancing accounts 198 586 (317)
Regulatory assets and liabilities (3) (4) 8
Other current assets (41) (18) (10)
Accounts payable 122 (157) 109
Reserve for Aliso Canyon costs (221) 274 0
Other current liabilities (55) 13 (138)
Net change in other working capital components (59) 699 (375)
Net cash provided by operating activities 2,319 2,905 2,161
CASH FLOWS FROM INVESTING ACTIVITIES      
Expenditures for property, plant and equipment (4,214) (3,156) (3,123)
Expenditures for investments and acquisition of businesses, net of cash and cash equivalents acquired (1,582) (200) (240)
Proceeds from sale of assets, net of cash sold 763 373 149
Distributions from investments 25 15 13
Purchases of nuclear decommissioning and other trust assets (1,034) (531) (613)
Proceeds from sales by nuclear decommissioning and other trusts 1,134 577 601
Increases in restricted cash (139) (100) (152)
Decreases in restricted cash 175 93 155
Advances to unconsolidated affiliates (25) (31) (185)
Decrease (increase) in loans to affiliate, net 11 74 18
Other 0 1 35
Net cash used in investing activities (4,886) (2,885) (3,342)
CASH FLOWS FROM FINANCING ACTIVITIES      
Common dividends paid (686) (628) (598)
Preferred dividends paid by subsidiary (1) (1) (1)
Issuances of common stock 51 52 56
Repurchases of common stock (56) (74) (38)
Issuances of debt (maturities greater than 90 days) 2,951 2,992 3,272
Payments on debt (maturities greater than 90 days) (2,057) (1,854) (2,034)
Increase (decrease) in short-term debt, net 692 (622) 412
Proceeds from sale of noncontrolling interests, net of $40 in offering costs 1,692 0 0
Purchase of noncontrolling interests 0 0 (74)
Net distributions to noncontrolling interests (63) (73) (104)
Tax benefit related to share-based compensation 0 52 0
Other (10) (17) (37)
Net cash provided by (used in) financing activities 2,513 (173) 854
Effect of exchange rate changes on cash and cash equivalents 0 (14) (7)
Increase (decrease) in cash and cash equivalents (54) (167) (334)
Cash and cash equivalents, January 1 403 570 904
Cash and cash equivalents, December 31 349 403 570
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION      
Interest payments, net of amounts capitalized 532 537 536
Income tax payments (refunds), net 160 67 102
Noncash acquisition of businesses:      
Assets acquired, net of cash and cash equivalents 3,876 10 0
Fair value of equity method investment immediately prior to acquisition (1,144) 0 0
Liabilities assumed (1,322) (2) 0
Accrued purchase price 0 (5) 0
Cash paid, net of cash and cash equivalents acquired 1,410 3 0
Other Noncash Investing and Financing Items [Abstract]      
Accrued capital expenditures 626 566 433
Increase in capital lease obligations for investment in property, plant and equipment 0 24 60
Financing of build-to-suit property 0 61 61
Redemption of industrial development bonds 0 79 0
Common dividends issued in stock 53 55 42
Dividends declared but not paid 196 180 166
San Diego Gas and Electric Company [Member]      
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income 565 606 527
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 646 604 530
Deferred income taxes and investment tax credits 258 195 223
Plant closure (adjustment) loss 0 (26) 6
Fixed-price contracts and other derivatives (3) (4) (6)
Other (35) (16) (23)
Changes in other assets (16) (122) 191
Changes in other liabilities 11 13 18
Changes in working capital components:      
Accounts receivable (31) (10) (47)
Due to/from affiliates, net (19) 21 (10)
Income taxes (115) 0 35
Inventories (5) (2) 4
Regulatory balancing accounts 35 474 (208)
Other current assets 25 (24) (16)
Accounts payable 39 (28) (23)
Other current liabilities (28) (17) (104)
Net cash provided by operating activities 1,327 1,664 1,097
CASH FLOWS FROM INVESTING ACTIVITIES      
Expenditures for property, plant and equipment (1,399) (1,133) (1,100)
Purchases of nuclear decommissioning trust assets (1,034) (526) (609)
Proceeds from sales by nuclear decommissioning trusts 1,134 577 601
Increases in restricted cash (49) (39) (84)
Decreases in restricted cash 60 35 96
Increase in loans to affiliate, net (31) 0 0
Expenditures related to long-term service agreement 0 0 30
Net cash used in investing activities (1,319) (1,086) (1,126)
CASH FLOWS FROM FINANCING ACTIVITIES      
Common dividends paid (175) (300) (200)
Issuances of debt (maturities greater than 90 days) 498 444 100
Payments on debt (maturities greater than 90 days) (204) (547) (24)
Increase (decrease) in short-term debt, net (114) (131) 187
Net distributions to noncontrolling interests (21) (30) (53)
Debt issuance costs (4) (2) 0
Net cash provided by (used in) financing activities (20) (566) 10
Increase (decrease) in cash and cash equivalents (12) 12 (19)
Cash and cash equivalents, January 1 20 8 27
Cash and cash equivalents, December 31 8 20 8
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION      
Interest payments, net of amounts capitalized 187 199 196
Income tax payments (refunds), net 137 88 (4)
Other Noncash Investing and Financing Items [Abstract]      
Accrued capital expenditures 227 191 217
Increase in capital lease obligations for investment in property, plant and equipment 0 15 60
Southern California Gas Company [Member]      
CASH FLOWS FROM OPERATING ACTIVITIES      
Net income 350 420 333
Adjustments to reconcile net income to net cash provided by operating activities:      
Depreciation and amortization 476 461 431
Deferred income taxes and investment tax credits 103 127 130
Impairment losses 22 9 0
Other (26) (20) (7)
Insurance receivable for Aliso Canyon costs (281) (325) 0
Changes in other assets 35 (91) (131)
Changes in other liabilities 7 (7) 29
Changes in working capital components:      
Accounts receivable 37 (90) 30
Due to/from affiliates, net 6 (11) (1)
Income taxes (2) 8 17
Inventories 4 102 (113)
Regulatory balancing accounts 163 112 (109)
Other current assets (13) 8 (3)
Accounts payable 36 (143) 156
Reserve for Aliso Canyon costs (221) 274 0
Other current liabilities (25) 46 3
Net cash provided by operating activities 671 880 765
CASH FLOWS FROM INVESTING ACTIVITIES      
Expenditures for property, plant and equipment (1,319) (1,352) (1,104)
Decrease (increase) in loans to affiliate, net 50 (50) 0
Net cash used in investing activities (1,269) (1,402) (1,104)
CASH FLOWS FROM FINANCING ACTIVITIES      
Common dividends paid 0 (50) (100)
Preferred dividends paid (1) (1) (1)
Issuances of debt (maturities greater than 90 days) 499 599 747
Payments on debt (maturities greater than 90 days) (3) 0 (250)
Increase (decrease) in short-term debt, net 62 (50) 8
Debt issuance costs (5) (3) (7)
Net cash provided by (used in) financing activities 552 495 397
Increase (decrease) in cash and cash equivalents (46) (27) 58
Cash and cash equivalents, January 1 58 85 27
Cash and cash equivalents, December 31 12 58 85
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION      
Interest payments, net of amounts capitalized 92 79 62
Income tax payments (refunds), net 41 1 (10)
Other Noncash Investing and Financing Items [Abstract]      
Accrued capital expenditures $ 207 $ 189 $ 168