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Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Cash Flows from Operating Activities
Net Income	$ 4,722	$ 5,018
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	4,445	4,318
Employee retirement benefits	62	54
Deferred income taxes	141	331
Provision for expected credit losses	567	530
Equity in losses of unconsolidated businesses, net of dividends received	14	10
Changes in current assets and liabilities, net of effects from acquisition/disposition of businesses	(2,531)	(774)
Other, net	(336)	(1,198)
Net cash provided by operating activities	7,084	8,289
Cash Flows from Investing Activities
Capital expenditures (including capitalized software)	(4,376)	(5,958)
Acquisitions of wireless licenses	(449)	(598)
Collateral receipts (payments) related to derivative contracts, net	(432)	367
Other, net	12	79
Net cash used in investing activities	(5,245)	(6,110)
Cash Flows from Financing Activities
Proceeds from long-term borrowings	3,110	504
Proceeds from asset-backed long-term borrowings	2,510	1,754
Net proceeds from short-term commercial paper	2,347	342
Repayments of long-term borrowings and finance lease obligations	(4,508)	(1,325)
Repayments of asset-backed long-term borrowings	(1,408)	(931)
Dividends paid	(2,796)	(2,744)
Other, net	(683)	17
Net cash used in financing activities	(1,428)	(2,383)
Increase (decrease) in cash, cash equivalents and restricted cash	411	(204)
Cash, cash equivalents and restricted cash, beginning of period	3,497	4,111
Cash, cash equivalents and restricted cash, end of period	$ 3,908	$ 3,907

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