Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Cash flows from operating activities:
Net income (loss)	$ (641)		$ 616
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Restructuring Charges	1,208	[1]	0	[1]
Depreciation, depletion, and amortization	560		510
Other changes:
Receivables	763		(175)
Accounts payable	(318)		160
Inventories	(132)		(105)
Other	(628)		(52)
Total cash flows from operating activities	812		954
Cash flows from investing activities:
Capital expenditures	(704)		(643)
Purchases of investment securities	(27)		(55)
Sales of investment securities	22		50
Other investing activities	27		(26)
Total cash flows from investing activities	(682)		(674)
Cash flows from financing activities:
Dividends to shareholders	(153)		(127)
Payments to reacquire common stock	0		(500)
Other financing activities	51		113
Total cash flows from financing activities	(102)		(514)
Effect of exchange rate changes on cash	(25)		1
Increase (decrease) in cash and equivalents	3		(233)
Cash and equivalents at beginning of period	2,291		2,356
Cash and equivalents at end of period	2,294		2,123
Cash payments (receipts) during the period for:
Interest	167		167
Income taxes	$ 135		$ (25)

[1] (a) Includes $510 million attributable to Completion and Production, $638 million attributable to Drilling and Evaluation, and $60 million attributable to Corporate and other during the three months ended March 31, 2015.