Consolidated Statements Of Cash Flows - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Operating Activities
Net income	$ 7,400	$ 6,523
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,139	9,274
Undistributed earnings from investments in equity affiliates	(22)	(23)
Provision for uncollectible accounts	705	535
Deferred income tax expense	1,767	1,244
Net gain from sale of investments, net of impairments	(85)	(50)
Changes in operating assets and liabilities:
Accounts receivable	543	434
Other current assets	1,069	732
Accounts payable and accrued liabilities	(3,059)	(1,125)
Retirement benefit funding	(280)	(455)
Other - net	(2,970)	(1,191)
Total adjustments	10,807	9,375
Net Cash Provided by Operating Activities	18,207	15,898
Investing Activities
Purchase of property and equipment	(9,702)	(8,328)
Interest during construction	(437)	(339)
Acquisitions, net of cash acquired	(485)	(20,954)
Dispositions	107	72
Sale of securities, net	500	1,890
Other	0	(1)
Net Cash Used in Investing Activities	(10,017)	(27,660)
Financing Activities
Issuance of long-term debt	10,140	33,958
Repayment of long-term debt	(9,129)	(2,919)
Purchase of treasury stock	(197)	0
Issuance of treasury stock	119	20
Dividends paid	(5,899)	(4,873)
Other	(1,137)	(2,071)
Net Cash Provided by (Used in) Financing Activities	(6,103)	24,115
Net increase in cash and cash equivalents	2,087	12,353
Cash and cash equivalents beginning of year	5,121	8,603
Cash and Cash Equivalents End of Period	7,208	20,956
Cash paid (received) during the six months ended June 30 for:
Interest	2,914	2,178
Income taxes, net of refunds	$ 2,468	$ (71)