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Schedule I - Condensed Financial Information of Parent (Statement of Cash Flows) (Details) - USD ($) $ in Millions | 6 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2024 | Sep. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |  |
Net cash provided by operating activities | $ (679) | $ (1,664) | $ (2,752) | $ (3,034) | $ (2,715)
Investing Activities: |  |  |  |  |
Sale of short-term investments | 534 | 731 | 796 | 1,318 | 1,049
Net cash used in investing activities | (4,224) | (6,089) | (7,700) | (8,188) | (5,836)
Financing Activities: |  |  |  |  |
Common stock dividends paid | (238) | (361) | (483) | (444) | (422)
Payments for deferred financing costs | (75) | (88) | (138) | (142) | (120)
Sales to noncontrolling interests | 323 | 869 | 1,247 | 1,938 | 742
Proceeds from (Payments for) Other Financing Activities | 13 | (25) | (109) | (121) | 3
Net cash provided by financing activities | 3,759 | 5,187 | 4,963 | 5,405 | 3,758
Cash and cash equivalents, beginning | 1,426 | 1,426 | 1,426 |  |
Effect of exchange rate changes on cash, cash equivalents and restricted cash | (43) | (47) | (63) | (270) | (56)
Cash and cash equivalents, ending | 1,773 | 1,919 | 1,524 | 1,426 |
SUPPLEMENTAL DISCLOSURES: |  |  |  |  |
Cash payments for interest, net of amounts capitalized |  |  | (1,268) | (1,317) | (928)
Cash payments for income taxes, net of refunds |  |  | (345) | (301) | (271)
Parent Company [Member] |  |  |  |  |
Condensed Cash Flow Statements, Captions [Line Items] |  |  |  |  |
Net cash provided by operating activities |  |  | (731) | (608) | 434
Investing Activities: |  |  |  |  |
Proceeds from the sale of business interests, net of expenses |  |  | 566 | 474 | 157
Investment in and net advances to subsidiaries |  |  | (2,508) | (2,187) | (1,716)
Return of capital |  |  | 786 | 1,185 | 907
Additions to property, plant and equipment |  |  | (11) | (9) | (10)
Net cash used in investing activities |  |  | (1,167) | (537) | (662)
Financing Activities: |  |  |  |  |
(Repayments) borrowings under the revolver, net |  |  | 0 | (325) | (40)
Borrowings of notes payable and other coupon bearing securities |  |  | 1,450 | 900 | 200
Repayments of notes payable and other coupon bearing securities |  |  | (200) | 0 | 0
Loans from (repayments to) subsidiaries |  |  | (76) | (177) | 465
Proceeds from issuance of common stock |  |  | 3 | 1 | 15
Common stock dividends paid |  |  | (483) | (444) | (422)
Payments for deferred financing costs |  |  | (21) | (14) | (4)
Proceeds from (Payments for) Other Financing Activities |  |  | (5) | (3) | (2)
Net cash provided by financing activities |  |  | 668 | (62) | 212
Cash and cash equivalents, beginning | $ 33 | $ 33 | 33 | 24 | 40
Effect of exchange rate changes on cash, cash equivalents and restricted cash |  |  | 232 | 9 | (16)
Cash and cash equivalents, ending |  |  | 265 | 33 | 24
SUPPLEMENTAL DISCLOSURES: |  |  |  |  |
Cash payments for interest, net of amounts capitalized |  |  | 202 | 178 | 125
Cash payments for income taxes, net of refunds |  |  | $ 44 | $ 9 | $ 1

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