Borrowings, Long-term Debt (Details)
AUD in Millions, $ in Millions |
3 Months Ended |
9 Months Ended |
|
|
|
|
Sep. 30, 2017
USD ($)
|
Sep. 30, 2017
USD ($)
|
Sep. 30, 2017
AUD
|
Dec. 31, 2016
USD ($)
|
Oct. 01, 2016
USD ($)
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 31,702
|
$ 31,702
|
|
$ 25,337
|
|
| Less: current portion of long-term debt |
(4,129)
|
(4,129)
|
|
(4,618)
|
|
| Less: debt issuance costs |
(75)
|
(75)
|
|
(70)
|
|
| Total long-term debt |
27,498
|
27,498
|
|
20,649
|
|
| Derivative, Notional Amount |
38,205
|
38,205
|
|
33,528
|
$ 29,234
|
| $700 senior notes due May 2020 - Floating Rate [Member] |
|
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|
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| Debt Instrument [Line Items] |
|
|
|
|
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| Long-term Debt |
700
|
700
|
|
0
|
|
| Debt Instrument, Face Amount |
700
|
$ 700
|
|
|
|
| Debt Instrument, Basis Spread on Variable Rate |
|
0.08%
|
|
|
|
| $800 Senior notes due May 2022 - Floating Rate [Member] |
|
|
|
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| Debt Instrument [Line Items] |
|
|
|
|
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| Long-term Debt |
800
|
$ 800
|
|
0
|
|
| Debt Instrument, Face Amount |
800
|
$ 800
|
|
|
|
| Debt Instrument, Basis Spread on Variable Rate |
|
0.35%
|
|
|
|
| $500 Senior notes due May 2017 at 1.75% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
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| Long-term Debt |
0
|
$ 0
|
|
501
|
|
| Debt Instrument, Face Amount |
$ 500
|
500
|
|
|
|
| Repayment of debt |
|
$ 500
|
|
|
|
| Stated Interest Rate |
1.75%
|
1.75%
|
1.75%
|
|
|
| $3,000 Senior notes due December 2017 at 1.35% [Member] |
|
|
|
|
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| Debt Instrument [Line Items] |
|
|
|
|
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| Long-term Debt |
$ 3,000
|
$ 3,000
|
|
2,999
|
|
| Debt Instrument, Face Amount |
$ 3,000
|
$ 3,000
|
|
|
|
| Stated Interest Rate |
1.35%
|
1.35%
|
1.35%
|
|
|
| $600 Senior notes due November 2018 at 2.50% [Member] |
|
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|
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|
| Debt Instrument [Line Items] |
|
|
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| Long-term Debt |
$ 602
|
$ 602
|
|
604
|
|
| Debt Instrument, Face Amount |
$ 600
|
$ 600
|
|
|
|
| Stated Interest Rate |
2.50%
|
2.50%
|
2.50%
|
|
|
| A$250 AUD-denominated Senior notes due December 2019 at 3.25% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
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|
| Long-term Debt |
$ 196
|
$ 196
|
|
180
|
|
| Debt Instrument, Face Amount | AUD |
|
|
AUD 250
|
|
|
| Stated Interest Rate |
3.25%
|
3.25%
|
3.25%
|
|
|
| $1,000 Senior notes due May 2020 at 1.85% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
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| Long-term Debt |
$ 1,000
|
$ 1,000
|
|
0
|
|
| Debt Instrument, Face Amount |
$ 1,000
|
$ 1,000
|
|
|
|
| Stated Interest Rate |
1.85%
|
1.85%
|
1.85%
|
|
|
| $1,750 Senior notes due July 2020 at 2.45% [Member] |
|
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|
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|
| Debt Instrument [Line Items] |
|
|
|
|
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| Long-term Debt |
$ 1,749
|
$ 1,749
|
|
1,749
|
|
| Debt Instrument, Face Amount |
$ 1,750
|
$ 1,750
|
|
|
|
| Stated Interest Rate |
2.45%
|
2.45%
|
2.45%
|
|
|
| $500 Senior notes due May 2021 at 1.70% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
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|
| Long-term Debt |
$ 499
|
$ 499
|
|
499
|
|
| Debt Instrument, Face Amount |
$ 500
|
$ 500
|
|
|
|
| Stated Interest Rate |
1.70%
|
1.70%
|
1.70%
|
|
|
| $2,000 Senior notes due October 2021 at 3.30% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 1,995
|
$ 1,995
|
|
1,988
|
|
| Debt Instrument, Face Amount |
$ 2,000
|
$ 2,000
|
|
|
|
| Stated Interest Rate |
3.30%
|
3.30%
|
3.30%
|
|
|
| $750 Senior notes due May 2022 at 2.35% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 747
|
$ 747
|
|
0
|
|
| Debt Instrument, Face Amount |
$ 750
|
$ 750
|
|
|
|
| Stated Interest Rate |
2.35%
|
2.35%
|
2.35%
|
|
|
| $1,000 Senior notes due July 2022 at 3.10% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 994
|
$ 994
|
|
987
|
|
| Debt Instrument, Face Amount |
$ 1,000
|
$ 1,000
|
|
|
|
| Stated Interest Rate |
3.10%
|
3.10%
|
3.10%
|
|
|
| A$500 AUD-denominated Senior notes due December 2022 at 4.00% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 431
|
$ 431
|
|
394
|
|
| Debt Instrument, Face Amount | AUD |
|
|
AUD 550
|
|
|
| Stated Interest Rate |
4.00%
|
4.00%
|
4.00%
|
|
|
| $1,500 Senior notes due December 2022 at 2.70% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 1,491
|
$ 1,491
|
|
1,480
|
|
| Debt Instrument, Face Amount |
$ 1,500
|
$ 1,500
|
|
|
|
| Stated Interest Rate |
2.70%
|
2.70%
|
2.70%
|
|
|
| $400 Senior notes due November 2023 at 4.10% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 421
|
$ 421
|
|
424
|
|
| Debt Instrument, Face Amount |
$ 400
|
$ 400
|
|
|
|
| Stated Interest Rate |
4.10%
|
4.10%
|
4.10%
|
|
|
| $1,250 Senior notes due May 2024 at 2.875% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 1,242
|
$ 1,242
|
|
0
|
|
| Debt Instrument, Face Amount |
$ 1,250
|
$ 1,250
|
|
|
|
| Stated Interest Rate |
2.88%
|
2.88%
|
2.88%
|
|
|
| $600 Senior notes due June 2024 at 2.70% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 596
|
$ 596
|
|
0
|
|
| Debt Instrument, Face Amount |
$ 600
|
$ 600
|
|
|
|
| Stated Interest Rate |
2.70%
|
2.70%
|
2.70%
|
|
|
| $2,250 Senior notes due July 2025 at 3.70% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 2,177
|
$ 2,177
|
|
2,148
|
|
| Debt Instrument, Face Amount |
$ 2,250
|
$ 2,250
|
|
|
|
| Stated Interest Rate |
3.70%
|
3.70%
|
3.70%
|
|
|
| $1,000 Senior notes due May 2026 at 2.60% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 993
|
$ 993
|
|
983
|
|
| Debt Instrument, Face Amount |
$ 1,000
|
$ 1,000
|
|
|
|
| Stated Interest Rate |
2.60%
|
2.60%
|
2.60%
|
|
|
| $1,000 Senior notes due May 2027 at 3.15%[Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 991
|
$ 991
|
|
0
|
|
| Debt Instrument, Face Amount |
$ 1,000
|
$ 1,000
|
|
|
|
| Stated Interest Rate |
3.15%
|
3.15%
|
3.15%
|
|
|
| $750 Senior notes due December 2032 at 4.00% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 745
|
$ 745
|
|
745
|
|
| Debt Instrument, Face Amount |
$ 750
|
$ 750
|
|
|
|
| Stated Interest Rate |
4.00%
|
4.00%
|
4.00%
|
|
|
| $1,500 Senior notes due October 2041 at 4.80% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 1,491
|
$ 1,491
|
|
1,491
|
|
| Debt Instrument, Face Amount |
$ 1,500
|
$ 1,500
|
|
|
|
| Stated Interest Rate |
4.80%
|
4.80%
|
4.80%
|
|
|
| $925 Senior notes due December 2042 at 4.25% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 924
|
$ 924
|
|
924
|
|
| Debt Instrument, Face Amount |
$ 925
|
$ 925
|
|
|
|
| Stated Interest Rate |
4.25%
|
4.25%
|
4.25%
|
|
|
| $2,000 Senior notes due July 2045 at 4.90% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 1,999
|
$ 1,999
|
|
1,999
|
|
| Debt Instrument, Face Amount |
$ 2,000
|
$ 2,000
|
|
|
|
| Stated Interest Rate |
4.90%
|
4.90%
|
4.90%
|
|
|
| $1,007 Senior notes due August 2045 at 4.90% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 0
|
$ 0
|
|
995
|
|
| Debt Instrument, Face Amount |
1,007
|
$ 1,007
|
|
|
|
| Repayment of debt |
$ 1,000
|
|
|
|
|
| Stated Interest Rate |
4.90%
|
4.90%
|
4.90%
|
|
|
| $915 Senior notes due December 2045 at 4.70% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 910
|
$ 910
|
|
894
|
|
| Debt Instrument, Face Amount |
$ 915
|
$ 915
|
|
|
|
| Stated Interest Rate |
4.70%
|
4.70%
|
4.70%
|
|
|
| $1,250 Senior notes due May 2046 at 4.10% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 1,243
|
$ 1,243
|
|
1,243
|
|
| Debt Instrument, Face Amount |
$ 1,250
|
$ 1,250
|
|
|
|
| Stated Interest Rate |
4.10%
|
4.10%
|
4.10%
|
|
|
| $1,000 Senior notes due May 2047 at 4.10% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 994
|
$ 994
|
|
0
|
|
| Debt Instrument, Face Amount |
$ 1,000
|
$ 1,000
|
|
|
|
| Stated Interest Rate |
4.10%
|
4.10%
|
4.10%
|
|
|
| $640, 4.70%, Senior notes due August 2047 [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 638
|
$ 638
|
|
0
|
|
| Debt Instrument, Face Amount |
$ 640
|
$ 640
|
|
|
|
| Stated Interest Rate |
4.70%
|
4.70%
|
4.70%
|
|
|
| $1,600 Junior subordinated convertible debentures due December 2035 at 2.95% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 1,004
|
$ 1,004
|
|
992
|
|
| Debt Instrument, Face Amount |
$ 1,600
|
$ 1,600
|
|
|
|
| Stated Interest Rate |
2.95%
|
2.95%
|
2.95%
|
|
|
| $2,000 Junior subordinated convertible debentures due August 2039 At 3.25% [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Long-term Debt |
$ 1,130
|
$ 1,130
|
|
$ 1,118
|
|
| Debt Instrument, Face Amount |
$ 2,000
|
$ 2,000
|
|
|
|
| Stated Interest Rate |
3.25%
|
3.25%
|
3.25%
|
|
|
| 2017 Senior Notes [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Debt Instrument, Face Amount |
$ 7,100
|
$ 7,100
|
|
|
|
| Currency Interest Rate Swaps [Member] | 2015 AUD-denominated Senior Notes [Member] |
|
|
|
|
|
| Debt Instrument [Line Items] |
|
|
|
|
|
| Derivative, Notional Amount |
$ 577
|
$ 577
|
|
|
|