Risk Management Activities and Fair Value Measurements - Fair Value (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Portion at Other than Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Portion at Other than Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Foreign Exchange Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Foreign Exchange Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Other Foreign Currency Instruments [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Other Foreign Currency Instruments [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Interest Rate Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Interest Rate Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Net Investment Hedging [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Net Investment Hedging [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Commodity Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member] Commodity Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Portion at Other than Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Portion at Other than Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Foreign Exchange Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Foreign Exchange Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Other Foreign Currency Instruments [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Other Foreign Currency Instruments [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Interest Rate Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Interest Rate Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Net Investment Hedging [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Net Investment Hedging [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Commodity Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Commodity Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Portion at Other than Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Portion at Other than Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Foreign Exchange Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Foreign Exchange Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Other Foreign Currency Instruments [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Other Foreign Currency Instruments [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Interest Rate Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Interest Rate Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Net Investment Hedging [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Net Investment Hedging [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Commodity Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member] Commodity Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Portion at Other than Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Portion at Other than Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Foreign Exchange Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Foreign Exchange Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Other Foreign Currency Instruments [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Other Foreign Currency Instruments [Member] Portion at Fair Value, Fair Value Disclosure [Member]		Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Interest Rate Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Interest Rate Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Net Investment Hedging [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Net Investment Hedging [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Commodity Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Jun. 30, 2011 Fair Value, Measurements, Recurring [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Commodity Contract [Member] Portion at Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2012 Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real Estate Held-for-sale	$ 8
Impairment of Real Estate	220
Assets, Fair Value Disclosure [Abstract]
Investment securities				11		16																				0		0																		22		23																				33		39
Derivative assets												0	0	0	[1]	0	[1]	0	0	0	0	0	0											11	1	85	[1]	182	[1]	286	163	68	0	10	4									0	0	0	[1]	0	[1]	0	0	0	0	0	0											11	1	85	[1]	182	[1]	286	163	68	0	10	4
Total assets recorded at fair value				11	[2]	16	[2]																			460	[2]	350	[2]																	22	[2]	23	[2]																			493	[2]	389	[2]
Liabilities, Fair Value Disclosure [Abstract]
Derivative liabilities												0	0	0	[1]	0	[1]	0	0	0	0	0	0											116	119	38	[1]	43	[1]	30	0	36	138	8	1									0	0	0	[1]	0	[1]	0	0	0	0	0	0											116	119	38	[1]	43	[1]	30	0	36	138	8	1
Long-term debt instruments								22,658	[3]	22,423	[3]																			1,086	[3]	995	[3]																	0	[3]	0	[3]																			23,744	[3]	23,418	[3]
Liabilities recorded at fair value		22,658	22,423	0	[4]	0	[4]																	1,314	1,296	228	[4]	301	[4]																	0	[4]	0	[4]																	23,972	23,719	228	[4]	301	[4]
Derivative, Net Liability Position, Aggregate Fair Value																																																																																								$ 81

[1] Other foreign currency instruments are comprised of foreign currency financial instruments that do not qualify as hedges.

[2] Investment securities are presented in other noncurrent assets and all derivative assets are presented in prepaid expenses and other current assets or other noncurrent assets.

[3] Long-term debt instruments are not recorded at fair value on a recurring basis however are measured at fair value for disclosure purposes.

[4] All liabilities are presented in accrued and other liabilities or other noncurrent liabilities.