CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 6,001	$ 4,017
Accounts receivable, net of allowance for doubtful accounts of $28 at September 30, 2012 and December 31, 2011	2,163	2,176
Materials and supplies, net of allowance for obsolescence of $71 and $59 at September 30, 2012 and December 31, 2011, respectively	597	529
Deferred income taxes, net	169	142
Assets held for sale	930	26
Other current assets	444	646
Total current assets	10,304	7,536
Property and equipment	26,567	24,833
Property and equipment of consolidated variable interest entities	817	2,252
Less accumulated depreciation	6,925	6,297
Property and equipment, net	20,459	20,788
Goodwill	2,987	3,217
Other assets	1,562	3,491
Total assets	35,312	35,032
Liabilities and equity
Accounts payable	876	880
Accrued income taxes	257	86
Debt due within one year	2,701	1,942
Debt of consolidated variable interest entities due within one year	28	245
Other current liabilities	2,839	2,375
Total current liabilities	6,701	5,528
Long-term debt	11,211	10,756
Long-term debt of consolidated variable interest entities	177	593
Deferred income taxes, net	450	514
Other long-term liabilities	1,517	1,898
Total long-term liabilities	13,355	13,761
Commitments and contingencies
Redeemable noncontrolling interest		116
Shares, CHF 15.00 par value, 402,282,355 authorized, 167,617,649 conditionally authorized, and 373,830,649 and 365,135,298 issued at September 30, 2012 and December 31, 2011, respectively; 359,418,883 and 349,805,793 outstanding at September 30, 2012 and December 31, 2011, respectively	5,129	4,982
Additional paid-in capital	7,496	7,211
Treasury shares, at cost, 2,863,267 held at September 30, 2012 and December 31, 2011	(240)	(240)
Retained earnings	3,399	4,180
Accumulated other comprehensive loss	(512)	(496)
Total controlling interest shareholders' equity	15,272	15,637
Noncontrolling interest	(16)	(10)
Total equity	15,256	15,627
Total liabilities and equity	$ 35,312	$ 35,032