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Schedule I Statement of Cash Flows (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Operating activities |  |  |
Cash flows from operating activities | $ 26,206 | $ 22,343 | $ 22,174
Investing activities |  |  |
Cash paid for acquisitions | (21,458) | (4,821) | (7,139)
Cash received from dispositions | 3,414 | 15 | 221
Cash flows used for investing activities | (28,476) | (10,372) | (12,532)
Financing activities |  |  |
Common stock repurchases | (7,000) | (5,000) | (4,250)
Proceeds from common stock issuances | 1,253 | 1,355 | 1,440
Proceeds from (repayments of) short-term borrowings, net | 732 | (1,302) | 872
Proceeds from issuance of long-term debt | 14,819 | 6,933 | 4,864
Repayments of long-term debt | (3,015) | (3,150) | (3,150)
Other, net | (1,944) | (295) | (459)
Cash flows from (used for) financing activities | 4,226 | (7,455) | (3,590)
(Decrease) increase in cash and cash equivalents | 1,990 | 4,454 | 5,936
Cash and cash equivalents, beginning of period | 21,375 |  |
Cash and cash equivalents, end of period | 23,365 | 21,375 |
Supplemental cash flow disclosures |  |  |
Cash paid for interest | 1,945 | 1,653 | 1,704
Cash paid for income taxes | 5,222 | 3,966 | 4,935
Parent Company [Member] |  |  |
Operating activities |  |  |
Cash flows from operating activities | 14,754 | 11,439 | 8,842
Investing activities |  |  |
Issuances of notes to subsidiaries | (567) | (444) | (628)
Repayments of notes to subsidiaries | 281 | 37 | 1,089
Cash paid for acquisitions | (20,728) | (4,953) | (7,706)
Return of capital to parent company | 1,424 | 245 | 943
Capital contributions to subsidiaries | (570) | (747) | (43)
Cash received from dispositions | 2,787 | 0 | 143
Cash flows used for investing activities | (17,373) | (5,862) | (6,202)
Financing activities |  |  |
Common stock repurchases | (7,000) | (5,000) | (4,250)
Proceeds from common stock issuances | 1,253 | 1,355 | 1,440
Cash dividends paid | (5,991) | (5,280) | (4,584)
Proceeds from (repayments of) short-term borrowings, net | 732 | (1,302) | 872
Proceeds from issuance of long-term debt | 14,819 | 6,933 | 4,864
Repayments of long-term debt | (3,015) | (3,150) | (3,150)
Proceeds from notes from subsidiary | 594 | 3,223 | 2,818
Other, net | (674) | (447) | (438)
Cash flows from (used for) financing activities | 718 | (3,668) | (2,428)
(Decrease) increase in cash and cash equivalents | (1,901) | 1,909 | 212
Cash and cash equivalents, beginning of period | 2,167 | 258 | 46
Cash and cash equivalents, end of period | 266 | 2,167 | 258
Supplemental cash flow disclosures |  |  |
Cash paid for interest | 1,969 | 1,575 | 1,633
Cash paid for income taxes | $ 4,298 | $ 3,050 | $ 4,185

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