Note 4: Borrowings and Lines of Credit (Details) (USD $)	6 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Notes to Condensed Consolidated Financial Statements [Abstract]
Commercial paper	$ 1,060,000,000	$ 0
Other borrowings	210,000,000	116,000,000
Short-term borrowings	1,270,000,000	116,000,000
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	3,000,000,000
Debt Instrument [Line Items]
Other Loans Payable	117,000,000	141,000,000
Other Long-term Debt	139,000,000	160,000,000
Total long-term debt	10,128,000,000	10,173,000,000
Long-term debt currently due	(636,000,000)	(163,000,000)
Long-term portion	9,492,000,000	10,010,000,000
Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,600,000,000
Line of Credit Facility, Amount Outstanding	0
Line of Credit Facility, Expiration Date	November 2014
Multicurrency Revolving Credit Agreement [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	1,400,000,000
Line of Credit Facility, Amount Outstanding	0
Line of Credit Facility, Expiration Date	December 2014
Notes 6.100% Due 2012 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.10%
Debt Instrument, Carrying Amount	500,000,000	500,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2012
Notes 4.875% Due 2015 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.875%
Debt Instrument, Carrying Amount	1,200,000,000	1,200,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2015
Notes 5.375% Due 2017 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.375%
Debt Instrument, Carrying Amount	1,000,000,000	1,000,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2017
Notes 6.125% Due 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.125%
Debt Instrument, Carrying Amount	1,250,000,000	1,250,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2019
Notes 8.875% Due 2019 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.875%
Debt Instrument, Carrying Amount	272,000,000	272,000,000
Debt Instrument Maturity Date Description	2019
Notes 4.500% Due 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.50%
Debt Instrument, Carrying Amount	1,250,000,000	1,250,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2020
Notes 8.750% Due 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	8.75%
Debt Instrument, Carrying Amount	250,000,000	250,000,000
Debt Instrument Maturity Date Description	2021
Notes 6.700% Due 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.70%
Debt Instrument, Carrying Amount	400,000,000	400,000,000
Debt Instrument Maturity Date Description	2028
Notes 7.500% Due 2029 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Debt Instrument, Carrying Amount	550,000,000	550,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2029
Notes 5.400% Due 2035 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.40%
Debt Instrument, Carrying Amount	600,000,000	600,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2035
Notes 6.050% Due 2036 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.05%
Debt Instrument, Carrying Amount	600,000,000	600,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2036
Notes 6.125% Due 2038 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.125%
Debt Instrument, Carrying Amount	1,000,000,000	1,000,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2038
Notes 5.700% Due 2040 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.70%
Debt Instrument, Carrying Amount	$ 1,000,000,000	$ 1,000,000,000
Debt Instrument, Call Feature	* We may redeem some or all of these series of notes at any time at a redemption price in U.S. dollars equal to the greater of 100% of the principal amount outstanding of the applicable series of notes to be redeemed, or the sum of the present values of the remaining scheduled payments of principal and interest on the applicable series of notes to be redeemed. The discounts applied on such redemptions are based on a semiannual calculation at an adjusted treasury rate plus 10-50 basis points, depending on the particular series. The redemption price will also include interest accrued to the date of redemption on the principal balance of the notes being redeemed.
Debt Instrument Maturity Date Description	2040