Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income	$ 2,596	$ 1,340
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation, depletion, and amortization	1,569	1,403
Deferred Income Tax Expense (Benefit)	(535)	(273)
Activity related to Macondo well incident	(195)	1,000
Other changes:
Receivables	(1,339)	(856)
Accounts payable	653	243
Inventories	(319)	(210)
Payment of Barracuda-Caratinga obligation	0	(219)
Other	483	121
Total cash flows from operating activities	2,913	2,549
Cash flows from investing activities:
Capital expenditures	(2,284)	(2,075)
Sales of investment securities	256	294
Payments to Acquire Businesses, Net of Cash Acquired	(230)	(12)
Purchases of investment securities	(166)	(168)
Other investing activities	92	94
Total cash flows from investing activities	(2,332)	(1,867)
Cash flows from financing activities:
Payments to reacquire common stock	(800)	(4,356)
Dividends to shareholders	(381)	(337)
Proceeds from long-term borrowings, net of offering costs	0	(2,968)
Other financing activities	311	58
Total cash flows from financing activities	(870)	(1,667)
Effect of exchange rate changes on cash	(38)	(8)
Decrease in cash and equivalents	(327)	(993)
Cash and equivalents at beginning of period	2,356	2,484
Cash and equivalents at end of period	2,029	1,491
Cash payments (receipts) during the period for:
Interest	357	269
Income taxes	$ 1,010	$ 566